Red Hat Security Advisory: OpenShift Container Platform 4.20.11 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 4.20.11. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/158014 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/4.20/html/release_notes/ Security Fix(es): * golang: archive/tar: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183) * python-eventlet: Eventlet HTTP request smuggling (CVE-2025-58068) 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 4.20 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/4.20/html-single/updating_clusters/index#updating-cluster-cli.
AI Analysis
Technical Summary
CVE-2025-58068 is a HTTP request smuggling vulnerability found in the Eventlet PyPI library used by Red Hat OpenShift Container Platform. The vulnerability stems from improper handling of HTTP trailer sections in the Eventlet WSGI parser, which can be exploited to bypass front-end security controls, poison web caches, and perform targeted attacks on active site users. Red Hat has released OpenShift Container Platform 4.20.11 containing updated container images that fix this issue. The advisory recommends upgrading to this release to remediate the vulnerability. No alternative mitigations are currently considered sufficient by Red Hat. The vulnerability has a moderate security impact rating by Red Hat, though other sources assign a higher CVSS score. No known exploits in the wild have been reported.
Potential Impact
An attacker exploiting this vulnerability could bypass front-end security controls, poison web caches, and launch targeted attacks against active users of the affected OpenShift Container Platform deployments. This could lead to unauthorized access or manipulation of web application behavior. However, there are no reports of active exploitation in the wild. The vulnerability affects the integrity and confidentiality of HTTP communications processed by the Eventlet WSGI parser.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Container Platform version 4.20.11. Users are strongly advised to upgrade to this version using the OpenShift CLI or web console as per Red Hat's upgrade instructions. No other mitigations currently meet Red Hat's criteria for ease of use and applicability. Monitoring for updates and applying the official patch is the recommended remediation approach.
Red Hat Security Advisory: OpenShift Container Platform 4.20.11 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 4.20.11. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/158014 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/4.20/html/release_notes/ Security Fix(es): * golang: archive/tar: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183) * python-eventlet: Eventlet HTTP request smuggling (CVE-2025-58068) 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 4.20 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/4.20/html-single/updating_clusters/index#updating-cluster-cli.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-58068 is a HTTP request smuggling vulnerability found in the Eventlet PyPI library used by Red Hat OpenShift Container Platform. The vulnerability stems from improper handling of HTTP trailer sections in the Eventlet WSGI parser, which can be exploited to bypass front-end security controls, poison web caches, and perform targeted attacks on active site users. Red Hat has released OpenShift Container Platform 4.20.11 containing updated container images that fix this issue. The advisory recommends upgrading to this release to remediate the vulnerability. No alternative mitigations are currently considered sufficient by Red Hat. The vulnerability has a moderate security impact rating by Red Hat, though other sources assign a higher CVSS score. No known exploits in the wild have been reported.
Potential Impact
An attacker exploiting this vulnerability could bypass front-end security controls, poison web caches, and launch targeted attacks against active users of the affected OpenShift Container Platform deployments. This could lead to unauthorized access or manipulation of web application behavior. However, there are no reports of active exploitation in the wild. The vulnerability affects the integrity and confidentiality of HTTP communications processed by the Eventlet WSGI parser.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Container Platform version 4.20.11. Users are strongly advised to upgrade to this version using the OpenShift CLI or web console as per Red Hat's upgrade instructions. No other mitigations currently meet Red Hat's criteria for ease of use and applicability. Monitoring for updates and applying the official patch is the recommended remediation approach.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:0663
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-58183"]
Threat ID: 6a16096fe29bf47b50637627
Added to database: 05/26/2026, 20:58:23 UTC
Last enriched: 08/14/2026, 21:55:49 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 71
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