Overview

Unless otherwise noted in the change logs, the IBM Cloud provider version enables Red Hat OpenShift APIs and features that are at beta. Red Hat OpenShift alpha features are disabled and subject to change.

Check the Security Bulletins on IBM Cloud Status for security vulnerabilities that affect Red Hat OpenShift on IBM Cloud. You can filter the results to view only Kubernetes Service security bulletins that are relevant to Red Hat OpenShift on IBM Cloud. Change log entries that address other security vulnerabilities but don't include an IBM security bulletin are for vulnerabilities that are not known to affect Red Hat OpenShift on IBM Cloud in normal usage. If you run privileged containers, run commands on the workers, or execute untrusted code, then you might be at risk.

Master patch updates are applied automatically. Worker node patch updates can be applied by reloading or updating the worker nodes. For more information about major, minor, and patch versions and preparation actions between minor versions, see Red Hat OpenShift versions.

Version 4.21

21 September 2026, Worker node fix pack 4.21.33_1532_openshift

The following list shows the components included in the worker node fix pack 4.21.33_1532_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-687.47.1.el9_8

Resolves the following CVEs: RHSA-2026:69126, CVE-2026-8927, RHSA-2026:67910, CVE-2026-63381, CVE-2026-63382, CVE-2026-63383, CVE-2026-63384, CVE-2026-63385, CVE-2026-63387, CVE-2026-63388, RHSA-2026:68011, CVE-2025-35973, RHSA-2026:69130, CVE-2026-59999, CVE-2026-73281, CVE-2026-73282, CVE-2026-73283, RHSA-2026:67165, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076, RHSA-2026:69540, RHSA-2026:69123, RHSA-2026:66366, CVE-2026-52859, CVE-2026-55892, CVE-2026-59857, CVE-2026-73072, CVE-2026-73076, CVE-2026-73077, CVE-2026-73078, RHSA-2026:67583, RHSA-2026:66403, RHSA-2026:64812, CVE-2026-56132, RHSA-2026:67585, RHSA-2026:64800, RHSA-2026:67265, CVE-2026-71226, CVE-2026-71227, RHSA-2026:64815, RHSA-2026:67155, RHSA-2026:64808, CVE-2026-52933, CVE-2026-53000, CVE-2026-64136, CVE-2026-64287, CVE-2026-64319, CVE-2026-64320, CVE-2026-64384, RHSA-2026:63129, CVE-2025-71147, CVE-2026-45970, CVE-2026-46185, CVE-2026-53073, CVE-2026-53391, CVE-2026-53392, CVE-2026-53397, CVE-2026-53399, CVE-2026-63800, CVE-2026-63808, CVE-2026-63824, CVE-2026-63886, CVE-2026-63887, CVE-2026-64002, CVE-2026-64018, CVE-2026-64268, CVE-2026-64298, CVE-2026-64304, CVE-2026-64387, CVE-2026-64438, CVE-2026-64490, CVE-2026-68145, CVE-2026-68166, CVE-2026-68480, CVE-2026-72069, CVE-2026-72130, RHSA-2026:66180, CVE-2026-43339, CVE-2026-43493, CVE-2026-46015, CVE-2026-46149, CVE-2026-46266, CVE-2026-46306, CVE-2026-46330, CVE-2026-53002, CVE-2026-53223, CVE-2026-53275, CVE-2026-53366, CVE-2026-64034, CVE-2026-64563, CVE-2026-64597, CVE-2026-72129, CVE-2026-74480, RHSA-2026:67150, CVE-2026-23466, CVE-2026-31479, CVE-2026-31566, CVE-2026-31656, CVE-2026-31692, CVE-2026-43334, CVE-2026-43368, CVE-2026-43370, CVE-2026-52917, CVE-2026-52918, CVE-2026-52947, CVE-2026-53053, CVE-2026-53072, CVE-2026-53091, CVE-2026-53182, CVE-2026-53209, CVE-2026-53246, CVE-2026-53254, CVE-2026-53256, CVE-2026-63801, CVE-2026-63889, CVE-2026-63944, CVE-2026-63945, CVE-2026-63946, CVE-2026-63947, CVE-2026-63971, CVE-2026-63975, CVE-2026-64037, CVE-2026-64113, CVE-2026-64117, CVE-2026-64255, CVE-2026-64515, CVE-2026-68086, CVE-2026-68117, CVE-2026-68264, CVE-2026-68300, CVE-2026-68315, CVE-2026-68376, CVE-2026-68402, CVE-2026-68406, and CVE-2026-72098.

RHEL 9 (Satellite) 5.14.0-687.47.1.el9_8

Kernel updates.

RHEL 9 (Classic) 5.14.0-687.47.1.el9_8

Resolves the following CVEs: RHSA-2026:69126, CVE-2026-8927, RHSA-2026:67910, CVE-2026-63381, CVE-2026-63382, CVE-2026-63383, CVE-2026-63384, CVE-2026-63385, CVE-2026-63387, CVE-2026-63388, RHSA-2026:68011, CVE-2025-35973, RHSA-2026:69130, CVE-2026-59999, CVE-2026-73281, CVE-2026-73282, CVE-2026-73283, RHSA-2026:67165, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076, RHSA-2026:69540, RHSA-2026:69123, RHSA-2026:66366, CVE-2026-52859, CVE-2026-55892, CVE-2026-59857, CVE-2026-73072, CVE-2026-73076, CVE-2026-73077, CVE-2026-73078, RHSA-2026:67583, RHSA-2026:66403, RHSA-2026:64812, CVE-2026-56132, RHSA-2026:67585, RHSA-2026:64800, RHSA-2026:67265, CVE-2026-71226, CVE-2026-71227, RHSA-2026:64815, RHSA-2026:67155, RHSA-2026:64808, CVE-2026-52933, CVE-2026-53000, CVE-2026-64136, CVE-2026-64287, CVE-2026-64319, CVE-2026-64320, CVE-2026-64384, RHSA-2026:63129, CVE-2025-71147, CVE-2026-45970, CVE-2026-46185, CVE-2026-53073, CVE-2026-53391, CVE-2026-53392, CVE-2026-53397, CVE-2026-53399, CVE-2026-63800, CVE-2026-63808, CVE-2026-63824, CVE-2026-63886, CVE-2026-63887, CVE-2026-64002, CVE-2026-64018, CVE-2026-64268, CVE-2026-64298, CVE-2026-64304, CVE-2026-64387, CVE-2026-64438, CVE-2026-64490, CVE-2026-68145, CVE-2026-68166, CVE-2026-68480, CVE-2026-72069, CVE-2026-72130, RHSA-2026:66180, CVE-2026-43339, CVE-2026-43493, CVE-2026-46015, CVE-2026-46149, CVE-2026-46266, CVE-2026-46306, CVE-2026-46330, CVE-2026-53002, CVE-2026-53223, CVE-2026-53275, CVE-2026-53366, CVE-2026-64034, CVE-2026-64563, CVE-2026-64597, CVE-2026-72129, CVE-2026-74480, RHSA-2026:67150, CVE-2026-23466, CVE-2026-31479, CVE-2026-31566, CVE-2026-31656, CVE-2026-31692, CVE-2026-43334, CVE-2026-43368, CVE-2026-43370, CVE-2026-52917, CVE-2026-52918, CVE-2026-52947, CVE-2026-53053, CVE-2026-53072, CVE-2026-53091, CVE-2026-53182, CVE-2026-53209, CVE-2026-53246, CVE-2026-53254, CVE-2026-53256, CVE-2026-63801, CVE-2026-63889, CVE-2026-63944, CVE-2026-63945, CVE-2026-63946, CVE-2026-63947, CVE-2026-63971, CVE-2026-63975, CVE-2026-64037, CVE-2026-64113, CVE-2026-64117, CVE-2026-64255, CVE-2026-64515, CVE-2026-68086, CVE-2026-68117, CVE-2026-68264, CVE-2026-68300, CVE-2026-68315, CVE-2026-68376, CVE-2026-68402, CVE-2026-68406, and CVE-2026-72098.

Red Hat OpenShift 4.21.33

For more information, see the change logs.

Red Hat CoreOS 4.21.33

For more information, see the change logs.

HAProxy b08f074d475aeb8ba959b03272daab5d46deec0c

Resolves the following CVEs: CVE-2026-41991, CVE-2026-50219, CVE-2026-16118, CVE-2026-56132, and CVE-2026-41992.

21 September 2026, Master fix pack 4.21.31_1531_openshift

The following list shows the components that are in the master fix pack 4.21.31_1531_openshift. Master patch updates are applied automatically.

Cluster health image v1.6.19

New version contains updates and security fixes.

etcd v3.5.33

See the etcd release notes.

IBM Cloud Block Storage driver and plug-in v2.5.28

New version contains updates and security fixes.

IBM Cloud Controller Manager v1.34.11-3

New version contains updates and security fixes.

IBM Cloud File Storage for Classic plug-in and monitor v457

New version contains updates and security fixes.

IBM Cloud RBAC Operator 109756b

New version contains updates and security fixes.

Key Management Service provider 2.10.30

New version contains updates and security fixes.

Portieris admission controller v0.14.3

See the Portieris admission controller release notes

Red Hat OpenShift on IBM Cloud 4.21.31

See the Red Hat OpenShift on IBM Cloud release notes.

08 September 2026, Worker node fix pack 4.21.31_1530_openshift

The following list shows the components included in the worker node fix pack 4.21.31_1530_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-687.42.1.el9_8

Resolves the following CVEs: RHSA-2026:63130, CVE-2026-33818, CVE-2026-56858, CVE-2026-56860, CVE-2026-56862, RHSA-2026:58936, CVE-2026-11822, CVE-2026-11824, RHSA-2026:60226, CVE-2026-54371, RHSA-2026:61355, CVE-2026-16730, RHSA-2026:61623, CVE-2026-41991, CVE-2026-41992, RHSA-2026:62217, CVE-2026-59843, CVE-2026-59844, CVE-2026-59845, CVE-2026-59846, CVE-2026-59847, CVE-2026-59848, CVE-2026-59850, RHSA-2026:61247, CVE-2026-11979, CVE-2026-6653, RHSA-2026:58572, CVE-2026-10805, RHSA-2026:61581, CVE-2026-18477, CVE-2026-18508, CVE-2026-5704, RHSA-2026:62143, CVE-2026-58471, CVE-2026-58472, RHSA-2026:57252, CVE-2026-43206, CVE-2026-43233, CVE-2026-43237, CVE-2026-45878, CVE-2026-45991, CVE-2026-46120, CVE-2026-52991, CVE-2026-53136, CVE-2026-53143, CVE-2026-53189, CVE-2026-53329, CVE-2026-53356, CVE-2026-53374, CVE-2026-63879, CVE-2026-63884, CVE-2026-63888, CVE-2026-63952, CVE-2026-64007, CVE-2026-64048, CVE-2026-64219, CVE-2026-64379, CVE-2026-64382, CVE-2026-64386, CVE-2026-64560, CVE-2026-68343, CVE-2026-68388, RHSA-2026:59723, CVE-2025-68211, CVE-2026-23003, CVE-2026-43114, CVE-2026-52920, CVE-2026-52924, CVE-2026-53131, CVE-2026-53185, CVE-2026-53268, CVE-2026-64189, CVE-2026-64191, CVE-2026-64276, CVE-2026-64277, and CVE-2026-74581.

RHEL 9 (Satellite) 5.14.0-687.42.1.el9_8

Kernel updates.

RHEL 9 (Classic) 5.14.0-687.42.1.el9_8

Resolves the following CVEs: RHSA-2026:63130, CVE-2026-33818, CVE-2026-56858, CVE-2026-56860, CVE-2026-56862, RHSA-2026:58936, CVE-2026-11822, CVE-2026-11824, RHSA-2026:60226, CVE-2026-54371, RHSA-2026:61355, CVE-2026-16730, RHSA-2026:61623, CVE-2026-41991, CVE-2026-41992, RHSA-2026:62217, CVE-2026-59843, CVE-2026-59844, CVE-2026-59845, CVE-2026-59846, CVE-2026-59847, CVE-2026-59848, CVE-2026-59850, RHSA-2026:61247, CVE-2026-11979, CVE-2026-6653, RHSA-2026:58572, CVE-2026-10805, RHSA-2026:61581, CVE-2026-18477, CVE-2026-18508, CVE-2026-5704, RHSA-2026:62143, CVE-2026-58471, CVE-2026-58472, RHSA-2026:57252, CVE-2026-43206, CVE-2026-43233, CVE-2026-43237, CVE-2026-45878, CVE-2026-45991, CVE-2026-46120, CVE-2026-52991, CVE-2026-53136, CVE-2026-53143, CVE-2026-53189, CVE-2026-53329, CVE-2026-53356, CVE-2026-53374, CVE-2026-63879, CVE-2026-63884, CVE-2026-63888, CVE-2026-63952, CVE-2026-64007, CVE-2026-64048, CVE-2026-64219, CVE-2026-64379, CVE-2026-64382, CVE-2026-64386, CVE-2026-64560, CVE-2026-68343, CVE-2026-68388, RHSA-2026:59723, CVE-2025-68211, CVE-2026-23003, CVE-2026-43114, CVE-2026-52920, CVE-2026-52924, CVE-2026-53131, CVE-2026-53185, CVE-2026-53268, CVE-2026-64189, CVE-2026-64191, CVE-2026-64276, CVE-2026-64277, and CVE-2026-74581.

Red Hat OpenShift 4.21.31

For more information, see the change logs.

Red Hat CoreOS 4.21.31

For more information, see the change logs.

HAProxy 32e7011201fc5fceab21338da7c0a2dfead3b185

Resolves the following CVEs: CVE-2026-11824, CVE-2026-11979, CVE-2026-8286, and CVE-2026-11822.

25 August 2026, Worker node fix pack 4.21.29_1529_openshift

The following list shows the components included in the worker node fix pack 4.21.29_1529_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-687.39.1.el9_8

Resolves the following CVEs: RHSA-2026:54510, CVE-2026-10723, CVE-2026-11331, CVE-2026-11622, CVE-2026-11721, CVE-2026-13204, CVE-2026-13321, RHSA-2026:55439, CVE-2026-1965, CVE-2026-3783, CVE-2026-8286, CVE-2026-9547, RHSA-2026:54571, CVE-2026-15816, RHSA-2026:55772, CVE-2026-55203, CVE-2026-55204, RHSA-2026:53844, CVE-2026-44943, CVE-2026-44944, RHSA-2026:53847, CVE-2026-55995, RHSA-2026:53329, CVE-2025-54518, CVE-2026-31530, CVE-2026-64368, CVE-2026-64531, RHSA-2026:54443, CVE-2026-53202, CVE-2026-53264, RHSA-2026:54268, CVE-2026-11940, RHSA-2026:55440, CVE-2026-15588, CVE-2026-58010, CVE-2026-58011, CVE-2026-58012, CVE-2026-58013, CVE-2026-58014, CVE-2026-58015, RHSA-2026:57610, CVE-2026-72693, RHSA-2026:51035, CVE-2026-23415, CVE-2026-43450, RHSA-2026:52674, CVE-2026-14164, RHSA-2026:54662, CVE-2026-58055, RHSA-2026:54484, and CVE-2026-45409.

RHEL 9 (Satellite) 5.14.0-687.39.1.el9_8

Kernel updates.

RHEL 9 (Classic) 5.14.0-687.39.1.el9_8

Resolves the following CVEs: RHSA-2026:54510, CVE-2026-10723, CVE-2026-11331, CVE-2026-11622, CVE-2026-11721, CVE-2026-13204, CVE-2026-13321, RHSA-2026:55439, CVE-2026-1965, CVE-2026-3783, CVE-2026-8286, CVE-2026-9547, RHSA-2026:54571, CVE-2026-15816, RHSA-2026:55772, CVE-2026-55203, CVE-2026-55204, RHSA-2026:53844, CVE-2026-44943, CVE-2026-44944, RHSA-2026:53847, CVE-2026-55995, RHSA-2026:53329, CVE-2025-54518, CVE-2026-31530, CVE-2026-64368, CVE-2026-64531, RHSA-2026:54443, CVE-2026-53202, CVE-2026-53264, RHSA-2026:54268, CVE-2026-11940, RHSA-2026:55440, CVE-2026-15588, CVE-2026-58010, CVE-2026-58011, CVE-2026-58012, CVE-2026-58013, CVE-2026-58014, CVE-2026-58015, RHSA-2026:57610, CVE-2026-72693, RHSA-2026:51035, CVE-2026-23415, CVE-2026-43450, RHSA-2026:52674, CVE-2026-14164, RHSA-2026:54662, CVE-2026-58055, RHSA-2026:54484, and CVE-2026-45409.

Red Hat OpenShift 4.21.29

For more information, see the change logs.

Red Hat CoreOS 4.21.29

For more information, see the change logs.

HAProxy a70e8a8452c4d476687ad749df47b6f27a61851a

Resolves the following CVEs: CVE-2026-54411, CVE-2026-54371, CVE-2026-55204, and CVE-2026-58055.

12 August 2026, Worker node fix pack 4.21.27_1528_openshift

The following list shows the components included in the worker node fix pack 4.21.27_1528_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-687.34.1.el9_8

Resolves the following CVEs: RHSA-2026:44385, CVE-2024-46738, CVE-2024-50076, CVE-2025-39982, CVE-2026-31488, CVE-2026-31613, CVE-2026-31684, CVE-2026-46116, CVE-2026-46209, RHSA-2026:49031, CVE-2025-10263, CVE-2025-40026, CVE-2026-52923, RHSA-2026:49839, CVE-2026-14474, CVE-2026-14476, RHSA-2026:48811, CVE-2026-48864, RHSA-2026:49910, and CVE-2026-29111.

RHEL 9 (Satellite) 5.14.0-687.34.1.el9_8

Kernel updates.

RHEL 9 (Classic) 5.14.0-687.34.1.el9_8

Resolves the following CVEs: RHSA-2026:44385, CVE-2024-46738, CVE-2024-50076, CVE-2025-39982, CVE-2026-31488, CVE-2026-31613, CVE-2026-31684, CVE-2026-46116, CVE-2026-46209, RHSA-2026:49031, CVE-2025-10263, CVE-2025-40026, CVE-2026-52923, RHSA-2026:49839, CVE-2026-14474, CVE-2026-14476, RHSA-2026:48811, CVE-2026-48864, RHSA-2026:49910, and CVE-2026-29111.

Red Hat OpenShift 4.21.27

For more information, see the change logs.

Red Hat CoreOS 4.21.27

For more information, see the change logs.

HAProxy bd7e64ef86b90455535107263466d1825f3e7f9f

Resolves the following CVEs: CVE-2026-56391, and CVE-2026-56392.

05 August 2026, Master fix pack 4.21.27_1527_openshift

The following list shows the components that are in the master fix pack 4.21.27_1527_openshift. Master patch updates are applied automatically.

etcd v3.5.32

See the etcd release notes.

IBM Cloud Block Storage driver and plug-in v2.5.27

New version contains updates and security fixes.

IBM Cloud Controller Manager v1.34.9-6

New version contains updates and security fixes.

IBM Cloud File Storage for Classic plug-in and monitor v456

New version contains updates and security fixes.

Key Management Service provider 2.10.28

New version contains updates and security fixes.

Red Hat OpenShift on IBM Cloud 4.21.27

See the Red Hat OpenShift on IBM Cloud release notes.Resolves the following CVEs: CVE-2026-16242.

28 July 2026, Worker node fix pack 4.21.25_1526_openshift

The following list shows the components included in the worker node fix pack 4.21.25_1526_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.128.1.el9_6

Resolves the following CVEs: RHSA-2026:38902, CVE-2025-68183, CVE-2026-31408, CVE-2026-43074, CVE-2026-43279, CVE-2026-45984, CVE-2026-46135, CVE-2026-46152, CVE-2026-46189, CVE-2026-46242, CVE-2026-46316, CVE-2026-53359, RHSA-2026:44385, CVE-2024-46738, CVE-2024-50076, CVE-2025-39982, CVE-2026-31488, CVE-2026-31613, CVE-2026-31684, CVE-2026-46116, CVE-2026-46209, RHSA-2026:40425, CVE-2026-43499, CVE-2026-53166, and CVE-2026-64600.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

RHEL 9 (Classic) 5.14.0-570.128.1.el9_6

Resolves the following CVEs: RHSA-2026:38902, CVE-2025-68183, CVE-2026-31408, CVE-2026-43074, CVE-2026-43279, CVE-2026-45984, CVE-2026-46135, CVE-2026-46152, CVE-2026-46189, CVE-2026-46242, CVE-2026-46316, CVE-2026-53359, RHSA-2026:44385, CVE-2024-46738, CVE-2024-50076, CVE-2025-39982, CVE-2026-31488, CVE-2026-31613, CVE-2026-31684, CVE-2026-46116, CVE-2026-46209, RHSA-2026:40425, CVE-2026-43499, CVE-2026-53166, and CVE-2026-64600.

Red Hat OpenShift 4.21.25

For more information, see the change logs.

Red Hat CoreOS 4.21.25

For more information, see the change logs.

HAProxy 346c7130717ef7cc25d1dfbca7d57ca32396b692

Resolves the following CVEs: CVE-2026-6238, CVE-2026-5928, CVE-2026-48864, CVE-2026-54370, CVE-2026-28390, CVE-2026-5435, CVE-2025-13151, CVE-2026-54369, CVE-2026-58016, and CVE-2025-6170.

28 July 2026, Master fix pack 4.21.19_1525_openshift

The following list shows the components that are in the master fix pack 4.21.19_1525_openshift. Master patch updates are applied automatically.

Cluster health image v1.6.17

New version contains updates and security fixes.

etcd v3.5.30

See the etcd release notes.

IBM Cloud Block Storage driver and plug-in v2.5.26

New version contains updates and security fixes.

IBM Cloud Controller Manager v1.34.9-4

New version contains updates and security fixes.

IBM Cloud File Storage for Classic plug-in and monitor v455

New version contains updates and security fixes.

IBM Cloud RBAC Operator 92ba7dd

New version contains updates and security fixes.

Key Management Service provider 2.10.27

New version contains updates and security fixes.

Portieris admission controller v0.14.2

See the Portieris admission controller release notes

Red Hat OpenShift on IBM Cloud 4.21.19

See the Red Hat OpenShift on IBM Cloud release notes.

13 July 2026, Worker node fix pack 4.21.22_1524_openshift

The following list shows the components included in the worker node fix pack 4.21.22_1524_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.125.1.el9_6

Resolves the following CVEs: RHSA-2026:30004, CVE-2026-33845, CVE-2026-33846, CVE-2026-3833, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-5260, CVE-2026-5419, RHSA-2026:34094, CVE-2025-21648, CVE-2025-21691, CVE-2026-23191, CVE-2026-31669, CVE-2026-43027, CVE-2026-43125, CVE-2026-43128, CVE-2026-43198, CVE-2026-43329, CVE-2026-43414, CVE-2026-43501, CVE-2026-45852, CVE-2026-46090, CVE-2026-46173, CVE-2026-46176, CVE-2026-46181, CVE-2026-46227, CVE-2026-46244, RHSA-2026:28147, CVE-2026-28847, CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVE-2026-43660, RHSA-2026:33634, CVE-2024-34459, RHSA-2026:33230, CVE-2026-5450, RHSA-2026:28832, and CVE-2026-31790.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

RHEL 9 (Classic) 5.14.0-570.125.1.el9_6

Resolves the following CVEs: RHSA-2026:30004, CVE-2026-33845, CVE-2026-33846, CVE-2026-3833, CVE-2026-42009, CVE-2026-42010, CVE-2026-42011, CVE-2026-42012, CVE-2026-42013, CVE-2026-42014, CVE-2026-42015, CVE-2026-5260, CVE-2026-5419, RHSA-2026:34094, CVE-2025-21648, CVE-2025-21691, CVE-2026-23191, CVE-2026-31669, CVE-2026-43027, CVE-2026-43125, CVE-2026-43128, CVE-2026-43198, CVE-2026-43329, CVE-2026-43414, CVE-2026-43501, CVE-2026-45852, CVE-2026-46090, CVE-2026-46173, CVE-2026-46176, CVE-2026-46181, CVE-2026-46227, CVE-2026-46244, RHSA-2026:28147, CVE-2026-28847, CVE-2026-28883, CVE-2026-28901, CVE-2026-28902, CVE-2026-28903, CVE-2026-28904, CVE-2026-28905, CVE-2026-28907, CVE-2026-28942, CVE-2026-28946, CVE-2026-28947, CVE-2026-28953, CVE-2026-28955, CVE-2026-28958, CVE-2026-43658, CVE-2026-43660, RHSA-2026:33634, CVE-2024-34459, RHSA-2026:33230, CVE-2026-5450, RHSA-2026:28832, and CVE-2026-31790.

Red Hat OpenShift 4.21.22

For more information, see the change logs.

Red Hat CoreOS 4.21.22

For more information, see the change logs.

HAProxy 27f76d0c7626993cde6e1ff90fa42253718cc5fa

Resolves the following CVEs: CVE-2026-5450.

01 July 2026, Worker node fix pack 4.21.21_1522_openshift

The following list shows the components included in the worker node fix pack 4.21.21_1522_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.123.1.el9_6

Resolves the following CVEs: RHSA-2026:24500, CVE-2026-1519, RHSA-2026:23224, CVE-2025-38653, CVE-2025-39766, CVE-2025-68366, CVE-2026-23210, CVE-2026-23270, CVE-2026-23392, CVE-2026-31419, CVE-2026-31607, CVE-2026-31685, CVE-2026-31709, CVE-2026-43037, CVE-2026-43038, CVE-2026-43163, RHSA-2026:25218, CVE-2025-40135, CVE-2025-40158, CVE-2025-40170, CVE-2025-68724, CVE-2025-71089, CVE-2025-71116, CVE-2026-22984, CVE-2026-22990, CVE-2026-23216, CVE-2026-23455, CVE-2026-31508, CVE-2026-43110, CVE-2026-43190, RHSA-2026:27708, CVE-2025-40064, CVE-2025-40168, CVE-2026-23136, CVE-2026-43116, CVE-2026-43158, CVE-2026-43303, CVE-2026-45898, CVE-2026-46125, CVE-2026-46166, CVE-2026-46243, CVE-2026-46323, CVE-2026-46331, RHSA-2026:24683, CVE-2026-40356, RHSA-2026:24337, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, RHSA-2026:25979, CVE-2026-1933, CVE-2026-2340, CVE-2026-3012, CVE-2026-4408, CVE-2026-4480, RHSA-2026:28050, CVE-2026-34982, CVE-2026-35177, CVE-2026-41411, and CVE-2026-46483.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

RHEL 9 (Classic) 5.14.0-570.123.1.el9_6

Resolves the following CVEs: RHSA-2026:24500, CVE-2026-1519, RHSA-2026:23224, CVE-2025-38653, CVE-2025-39766, CVE-2025-68366, CVE-2026-23210, CVE-2026-23270, CVE-2026-23392, CVE-2026-31419, CVE-2026-31607, CVE-2026-31685, CVE-2026-31709, CVE-2026-43037, CVE-2026-43038, CVE-2026-43163, RHSA-2026:25218, CVE-2025-40135, CVE-2025-40158, CVE-2025-40170, CVE-2025-68724, CVE-2025-71089, CVE-2025-71116, CVE-2026-22984, CVE-2026-22990, CVE-2026-23216, CVE-2026-23455, CVE-2026-31508, CVE-2026-43110, CVE-2026-43190, RHSA-2026:27708, CVE-2025-40064, CVE-2025-40168, CVE-2026-23136, CVE-2026-43116, CVE-2026-43158, CVE-2026-43303, CVE-2026-45898, CVE-2026-46125, CVE-2026-46166, CVE-2026-46243, CVE-2026-46323, CVE-2026-46331, RHSA-2026:24683, CVE-2026-40356, RHSA-2026:24337, CVE-2026-32280, CVE-2026-32281, CVE-2026-32282, CVE-2026-32283, RHSA-2026:25979, CVE-2026-1933, CVE-2026-2340, CVE-2026-3012, CVE-2026-4408, CVE-2026-4480, RHSA-2026:28050, CVE-2026-34982, CVE-2026-35177, CVE-2026-41411, and CVE-2026-46483.

Red Hat OpenShift 4.21.21

For more information, see the change logs.

Red Hat CoreOS 4.21.21

For more information, see the change logs.

HAProxy 119de539a7da3c92449b38e1531722802988e50c

Resolves the following CVEs: CVE-2026-45447, CVE-2024-4741, and CVE-2024-34459.

26 June 2026, Master fix pack 4.21.18_1520_openshift

The following list shows the components that are in the master fix pack 4.21.18_1520_openshift. Master patch updates are applied automatically.

Cluster health image v1.6.16

New version contains updates and security fixes.

etcd v3.5.30

See the etcd release notes.

IBM Cloud Block Storage driver and plug-in v2.5.26

New version contains updates and security fixes.

IBM Cloud Controller Manager v1.34.8-2

New version contains updates and security fixes.

IBM Cloud File Storage for Classic plug-in and monitor v455

New version contains updates and security fixes.

Key Management Service provider 2.10.25

New version contains updates and security fixes.

Portieris admission controller v0.14.0

See the Portieris admission controller release notes

Red Hat OpenShift on IBM Cloud 4.21.18

See the Red Hat OpenShift on IBM Cloud release notes.

15 June 2026, Worker node fix pack 4.21.19_1521_openshift

The following list shows the components included in the worker node fix pack 4.21.19_1521_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.116.1.el9_6

Resolves the following CVEs: CVE-2026-5119.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

RHEL 9 (Classic) 5.14.0-570.116.1.el9_6 :

Red Hat OpenShift 4.21.19

For more information, see the change logs.

Red Hat CoreOS 4.21.19

For more information, see the change logs.

HAProxy d4656f400ca14059e1b5b8ef8078b4903290791a

Resolves the following CVEs: CVE-2026-45186.

03 June 2026, Worker node fix pack 4.21.17_1519_openshift

The following list shows the components included in the worker node fix pack 4.21.17_1519_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.116.1.el9_6

Resolves the following CVEs: RHSA-2026:21392, CVE-2026-4802, RHSA-2026:18042, CVE-2026-39979, CVE-2026-40164, RHSA-2026:16312, CVE-2026-43284, RHSA-2026:20129, CVE-2026-46300, CVE-2026-46333, RHSA-2026:19458, CVE-2026-4878, RHSA-2026:18031, CVE-2026-41651, RHSA-2026:19576, CVE-2026-4786, CVE-2026-6100, RHSA-2026:20603, CVE-2024-12086, CVE-2025-10158, CVE-2026-41035, RHSA-2026:19457, CVE-2025-14087, CVE-2025-14512, RHSA-2026:20548, and CVE-2026-33416.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

RHEL 9 (Classic) 5.14.0-570.116.1.el9_6

Resolves the following CVEs: RHSA-2026:18042, CVE-2026-39979, CVE-2026-40164, RHSA-2026:16312, CVE-2026-43284, RHSA-2026:20129, CVE-2026-46300, CVE-2026-46333, RHSA-2026:19458, CVE-2026-4878, RHSA-2026:19576, CVE-2026-4786, CVE-2026-6100, RHSA-2026:19457, CVE-2025-14087, CVE-2025-14512, RHSA-2026:20548, and CVE-2026-33416.

Red Hat OpenShift 4.21.17

For more information, see the change logs.

Red Hat CoreOS 4.21.17

For more information, see the change logs.

HAProxy 0e0730588ba21878845cdb0bee615a371a489a02

Resolves the following CVEs: CVE-2026-4046, CVE-2026-33846, CVE-2026-42010, CVE-2026-5260, CVE-2026-42014, CVE-2026-3833, CVE-2026-42015, CVE-2026-33845, CVE-2026-42011, CVE-2026-42009, CVE-2026-42013, and CVE-2026-42012.

22 May 2026, Master fix pack 4.21.15_1517_openshift

The following list shows the components that are in the master fix pack 4.21.15_1517_openshift. Master patch updates are applied automatically.

IBM Cloud Controller Manager v1.34.7-4

New version contains updates and security fixes.

Key Management Service provider 2.10.24

New version contains updates and security fixes.

Kubernetes feature gates configuration

RotateKubeletServerCertificate=true, BuildCSIVolumes=true, NetworkLiveMigration=true, OpenShiftPodSecurityAdmission=false, AdminNetworkPolicy=true, KMSv1=false, ExternalOIDC=true, NetworkDiagnosticsConfig=true, ManagedBootImages=true, TranslateStreamCloseWebsocketRequests=false, NewOLM=false, DisableNodeKubeProxyVersion=false, ServiceAccountTokenNodeBinding=true, AdditionalRoutingCapabilities=true, CPMSMachineNamePrefix=true, ConsolePluginContentSecurityPolicy=true, GatewayAPI=true, GatewayAPIController=true, MetricsCollectionProfiles=true, NetworkSegmentation=true, RouteExternalCertificate=true, HighlyAvailableArbiter=true, ImageVolume=true, MachineConfigNodes=true, PinnedImages=true, ProcMountType=true, RouteAdvertisements=true, SigstoreImageVerification=true, StoragePerformantSecurityPolicy=true, UpgradeStatus=true, UserNamespacesPodSecurityStandards=true, UserNamespacesSupport=true, ExternalOIDCWithUIDAndExtraClaimMappings=true, HyperShiftOnlyDynamicResourceAllocation=true, ImageStreamImportMode=true, ManagedBootImagesvSphere=true, PreconfiguredUDNAddresses=true, SigstoreImageVerificationPKI=true, VolumeAttributesClass=true. For more information, see Kubernetes docs

Portieris admission controller v0.13.38

See the Portieris admission controller release notes

Red Hat OpenShift on IBM Cloud 4.21.15

See the Red Hat OpenShift on IBM Cloud release notes.

20 May 2026, Worker node fix pack 4.21.15_1518_openshift

The following list shows the components included in the worker node fix pack 4.21.15_1518_openshift. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

RHEL 9 (VPC) 5.14.0-570.112.1.el9_6

Resolves the following CVEs: RHSA-2025:22392, CVE-2025-38724, CVE-2025-39864, CVE-2025-39881, CVE-2025-39883, CVE-2025-39918, CVE-2025-39955, CVE-2025-40186, RHSA-2026:0457, CVE-2025-23142, CVE-2025-39806, CVE-2025-39981, CVE-2025-39983, CVE-2025-40176, CVE-2025-68287, RHSA-2026:0804, CVE-2025-21795, CVE-2025-37849, CVE-2025-37891, CVE-2025-39697, CVE-2025-40154, CVE-2025-68285, RHSA-2026:14339, CVE-2024-53216, CVE-2025-68741, CVE-2026-23243, CVE-2026-23401, CVE-2026-31431, CVE-2026-31532, CVE-2026-43077, RHSA-2026:16312, CVE-2026-43284, RHSA-2026:1703, CVE-2025-21863, CVE-2025-40248, CVE-2025-68301, RHSA-2026:16059, CVE-2026-35385, CVE-2026-35386, CVE-2026-35387, CVE-2026-35388, CVE-2026-35414, RHSA-2026:13889, CVE-2026-35535, RHSA-2025:21563, CVE-2024-56690, RHSA-2025:21933, CVE-2025-39898, CVE-2025-39971, CVE-2025-39973, CVE-2025-40047, RHSA-2025:22802, CVE-2025-39966, RHSA-2025:23789, CVE-2025-39843, CVE-2025-39925, RHSA-2026:11313, CVE-2026-23097, CVE-2026-31402, RHSA-2026:1194, CVE-2023-53034, CVE-2025-37761, CVE-2025-37789, CVE-2025-37819, CVE-2025-37869, CVE-2025-38289, CVE-2025-40141, CVE-2025-40251, CVE-2025-40258, CVE-2025-40277, CVE-2025-40318, RHSA-2026:2352, CVE-2024-54456, CVE-2025-21647, CVE-2025-21786, CVE-2025-21791, CVE-2025-38022, CVE-2025-38051, CVE-2025-38568, CVE-2025-40294, CVE-2025-40322, CVE-2025-68349, RHSA-2026:2759, CVE-2025-37882, CVE-2025-38349, CVE-2025-38730, CVE-2025-39760, CVE-2025-39933, CVE-2025-40269, CVE-2025-40271, CVE-2025-40304, RHSA-2026:3088, CVE-2025-37861, CVE-2025-38106, CVE-2025-38415, RHSA-2026:3520, CVE-2025-38154, RHSA-2026:4011, CVE-2024-47727, CVE-2024-56603, CVE-2025-22056, CVE-2025-38024, CVE-2025-38129, CVE-2025-38141, CVE-2025-38703, RHSA-2026:4745, CVE-2024-53229, CVE-2025-38206, CVE-2025-40240, CVE-2025-68811, CVE-2025-71085, RHSA-2026:5197, CVE-2025-38248, CVE-2026-23001, RHSA-2026:6164, CVE-2024-56645, CVE-2025-40096, CVE-2025-68800, CVE-2026-23209, RHSA-2026:6940, CVE-2025-38180, CVE-2026-23231, RHSA-2026:9112, CVE-2026-23066, CVE-2026-23111, CVE-2026-23144, CVE-2026-23171, CVE-2026-23193, CVE-2026-23204, RHSA-2026:17524, and CVE-2026-33636.

RHEL 9 (Classic) 5.14.0-570.112.1.el9_6

Resolves the following CVEs: RHSA-2026:2229, CVE-2025-6176, RHSA-2025:21773, CVE-2025-59375, RHSA-2026:1229, CVE-2025-68973, RHSA-2026:18042, CVE-2026-39979, CVE-2026-40164, RHSA-2025:22392, CVE-2025-38724, CVE-2025-39864, CVE-2025-39881, CVE-2025-39883, CVE-2025-39918, CVE-2025-39955, CVE-2025-40186, RHSA-2026:0457, CVE-2025-23142, CVE-2025-39806, CVE-2025-39981, CVE-2025-39983, CVE-2025-40176, CVE-2025-68287, RHSA-2026:0804, CVE-2025-21795, CVE-2025-37849, CVE-2025-37891, CVE-2025-39697, CVE-2025-40154, CVE-2025-68285, RHSA-2026:14339, CVE-2024-53216, CVE-2025-68741, CVE-2026-23243, CVE-2026-23401, CVE-2026-31431, CVE-2026-31532, CVE-2026-43077, RHSA-2026:16312, CVE-2026-43284, RHSA-2026:1703, CVE-2025-21863, CVE-2025-40248, CVE-2025-68301, RHSA-2026:7105, CVE-2026-4111, RHSA-2026:8866, CVE-2026-4424, CVE-2026-5121, RHSA-2026:19458, CVE-2026-4878, RHSA-2026:0210, CVE-2025-64720, CVE-2025-65018, CVE-2025-66293, RHSA-2026:3576, CVE-2026-22695, CVE-2026-22801, CVE-2026-25646, RHSA-2026:8548, CVE-2026-27135, RHSA-2026:16059, CVE-2026-35385, CVE-2026-35386, CVE-2026-35387, CVE-2026-35388, CVE-2026-35414, RHSA-2026:9415, CVE-2026-3497, RHSA-2026:1503, CVE-2025-15467, CVE-2025-69419, RHSA-2026:1729, CVE-2025-66418, CVE-2025-66471, CVE-2026-21441, RHSA-2026:9354, CVE-2026-4519, RHSA-2025:21067, CVE-2025-11561, RHSA-2026:13889, CVE-2026-35535, RHSA-2026:6539, CVE-2026-25749, CVE-2026-28417, CVE-2026-28421, CVE-2026-33412, RHSA-2025:23400, CVE-2025-11083, RHSA-2025:23043, CVE-2025-9086, RHSA-2026:1465, CVE-2025-13601, RHSA-2026:19457, CVE-2025-14087, CVE-2025-14512, RHSA-2026:6630, CVE-2025-14831, RHSA-2026:4823, CVE-2025-61662, RHSA-2025:21563, CVE-2024-56690, RHSA-2025:21933, CVE-2025-39898, CVE-2025-39971, CVE-2025-39973, CVE-2025-40047, RHSA-2025:22802, CVE-2025-39966, RHSA-2025:23789, CVE-2025-39843, CVE-2025-39925, RHSA-2026:11313, CVE-2026-23097, CVE-2026-31402, RHSA-2026:1194, CVE-2023-53034, CVE-2025-37761, CVE-2025-37789, CVE-2025-37819, CVE-2025-37869, CVE-2025-38289, CVE-2025-40141, CVE-2025-40251, CVE-2025-40258, CVE-2025-40277, CVE-2025-40318, RHSA-2026:2352, CVE-2024-54456, CVE-2025-21647, CVE-2025-21786, CVE-2025-21791, CVE-2025-38022, CVE-2025-38051, CVE-2025-38568, CVE-2025-40294, CVE-2025-40322, CVE-2025-68349, RHSA-2026:2759, CVE-2025-37882, CVE-2025-38349, CVE-2025-38730, CVE-2025-39760, CVE-2025-39933, CVE-2025-40269, CVE-2025-40271, CVE-2025-40304, RHSA-2026:3088, CVE-2025-37861, CVE-2025-38106, CVE-2025-38415, RHSA-2026:3520, CVE-2025-38154, RHSA-2026:4011, CVE-2024-47727, CVE-2024-56603, CVE-2025-22056, CVE-2025-38024, CVE-2025-38129, CVE-2025-38141, CVE-2025-38703, RHSA-2026:4745, CVE-2024-53229, CVE-2025-38206, CVE-2025-40240, CVE-2025-68811, CVE-2025-71085, RHSA-2026:5197, CVE-2025-38248, CVE-2026-23001, RHSA-2026:6164, CVE-2024-56645, CVE-2025-40096, CVE-2025-68800, CVE-2026-23209, RHSA-2026:6940, CVE-2025-38180, CVE-2026-23231, RHSA-2026:9112, CVE-2026-23066, CVE-2026-23111, CVE-2026-23144, CVE-2026-23171, CVE-2026-23193, CVE-2026-23204, RHSA-2026:17524, CVE-2026-33636, RHSA-2026:0428, CVE-2025-5987, RHSA-2025:22377, CVE-2025-9714, RHSA-2026:3941, CVE-2025-12801, RHSA-2026:0693, CVE-2025-61984, CVE-2025-61985, RHSA-2025:21174, CVE-2025-9230, RHSA-2026:2275, CVE-2025-12084, RHSA-2026:5218, CVE-2025-15366, CVE-2025-15367, CVE-2026-1299, RHSA-2026:0435, and CVE-2025-45582.

RHEL 9 (Satellite) 5.14.0-570.62.1.el9_6

Kernel updates.

Red Hat OpenShift 4.21.15

For more information, see the change logs.

Red Hat CoreOS 4.21.15

For more information, see the change logs.

HAProxy 6ba93946d8bd08ba581321189c719ab548cadf01

Resolves the following CVEs: CVE-2025-9714, CVE-2026-4424, CVE-2026-40356, CVE-2025-14512, CVE-2026-4878, CVE-2026-40355, CVE-2026-5121, and CVE-2025-14087.