Red Hat Security Advisory: OpenShift Container Platform 4.19.40 bug fix and security update
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.19.40. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:44228 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/ Security Fix(es): * kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329) * kernel: eventpoll: fix ep_remove struct eventpoll / struct file UAF (CVE-2026-46242) * kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316) * kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs (CVE-2026-46323) * kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role (CVE-2026-53359) * openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key (CVE-2026-31790) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. All OpenShift Container Platform 4.19 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.
AI Analysis
Technical Summary
The vulnerability CVE-2026-31790 in OpenSSL involves information disclosure from uninitialized memory triggered by an invalid RSA public key. Red Hat has released a security update for OpenSSL in Red Hat Enterprise Linux 10 to fix this issue. The advisory indicates a moderate security impact and provides updated OpenSSL packages (version 3.5.5-2.el10_2) for various architectures. No CVSS score is provided in the advisory. The vulnerability is related to CWE-824 (Improper Control of Generation of Code).
Potential Impact
The vulnerability allows an attacker to potentially disclose information from uninitialized memory when an invalid RSA public key is processed. This could lead to leakage of sensitive information. Red Hat rates the security impact as moderate. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released an official security update for OpenSSL in Red Hat Enterprise Linux 10 that addresses this vulnerability. Users should apply the update as described in the Red Hat advisory (RHSA-2026:19066) and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: OpenShift Container Platform 4.19.40 bug fix and security update
Description
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.19.40. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:44228 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/release_notes/ Security Fix(es): * kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329) * kernel: eventpoll: fix ep_remove struct eventpoll / struct file UAF (CVE-2026-46242) * kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316) * kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs (CVE-2026-46323) * kernel: KVM: x86: Fix shadow paging use-after-free due to unexpected role (CVE-2026-53359) * openssl: openssl: Information Disclosure from Uninitialized Memory via Invalid RSA Public Key (CVE-2026-31790) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. All OpenShift Container Platform 4.19 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html-single/updating_clusters/index#updating-cluster-cli.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-31790 in OpenSSL involves information disclosure from uninitialized memory triggered by an invalid RSA public key. Red Hat has released a security update for OpenSSL in Red Hat Enterprise Linux 10 to fix this issue. The advisory indicates a moderate security impact and provides updated OpenSSL packages (version 3.5.5-2.el10_2) for various architectures. No CVSS score is provided in the advisory. The vulnerability is related to CWE-824 (Improper Control of Generation of Code).
Potential Impact
The vulnerability allows an attacker to potentially disclose information from uninitialized memory when an invalid RSA public key is processed. This could lead to leakage of sensitive information. Red Hat rates the security impact as moderate. There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released an official security update for OpenSSL in Red Hat Enterprise Linux 10 that addresses this vulnerability. Users should apply the update as described in the Red Hat advisory (RHSA-2026:19066) and the referenced article https://access.redhat.com/articles/11258. Applying this update mitigates the vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19218
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a175eeee29bf47b50edca2d
Added to database: 05/27/2026, 21:15:26 UTC
Last enriched: 07/30/2026, 15:16:55 UTC
Last updated: 07/31/2026, 19:30:13 UTC
Views: 79
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