Red Hat Security Advisory: OpenShift Container Platform 4.19.44 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 4.19.44. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:57401 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/
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat OpenShift Container Platform 4.22.4 includes security and bug fixes addressing several issues, notably a critical authorization bypass vulnerability (CVE-2026-33186) in the gRPC-Go implementation. This vulnerability arises from improper validation of the HTTP/2 :path pseudo-header, allowing attackers to send malformed requests that bypass defined security policies. The advisory provides updated container images and RPM packages to remediate these vulnerabilities. The vendor rates the security impact as Important and recommends upgrading to the fixed versions. Additional bug fixes address various operational and stability issues in the platform.
Potential Impact
The authorization bypass vulnerability in gRPC-Go can lead to unauthorized access to services or information disclosure by circumventing security policies. The overall security impact is rated as Important by Red Hat. Other bugs fixed improve platform stability and functionality but do not have specified security impacts. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated container images and RPM packages for OpenShift Container Platform 4.22.4 and later that fix these vulnerabilities. Users should upgrade their clusters following Red Hat's documented procedures to fully apply the fixes. For the gRPC-Go authorization bypass, infrastructure-level normalization of HTTP/2 :path headers via reverse proxies or API gateways is recommended to ensure proper validation before requests reach the server. No alternative mitigations are noted. Patch status is confirmed with official fixes available.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:34794
- Cve Count
- 5
- Additional Cves
- ["CVE-2026-33186","CVE-2026-34986","CVE-2026-35469","CVE-2026-44494"]
Threat ID: 6a4e4ec5c9d9e3dbe3286fc2
Added to database: 07/08/2026, 13:21:09 UTC
Last enriched: 08/14/2026, 22:57:31 UTC
Last updated: 10/07/2026, 21:54:44 UTC
Views: 207
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