Red Hat Security Advisory: OpenShift Container Platform 4.20.16 security and extras update
Red Hat OpenShift Container Platform 4. 20. 16 includes a security update addressing a memory exhaustion vulnerability in the golang net/url package (CVE-2025-61726). This vulnerability involves query parameter parsing that can lead to excessive memory consumption. Red Hat has released updated RPM packages and container images to fix this issue. Users of OpenShift Container Platform 4. 20 are advised to upgrade to these updated packages and images via the appropriate release channels. The vendor rates the security impact as Important. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The security advisory for Red Hat OpenShift Container Platform 4.20.16 addresses a vulnerability identified as CVE-2025-61726 in the golang net/url package. The issue is a memory exhaustion vulnerability triggered during query parameter parsing, classified under CWE-770 (Allocation of Resources Without Limits or Throttling). The advisory provides updated RPM packages and container images to remediate this vulnerability. Red Hat recommends upgrading OpenShift Container Platform 4.20 clusters using the OpenShift CLI or web console. The update is rated with an Important security impact by Red Hat Product Security. No CVSS score is provided in the advisory.
Potential Impact
The vulnerability can cause memory exhaustion when parsing query parameters in the golang net/url package, potentially leading to denial of service conditions due to resource depletion. This could affect the stability and availability of OpenShift Container Platform deployments running vulnerable versions. There are no known exploits in the wild currently reported. The vendor rates the impact as Important, indicating a significant but not critical threat level.
Mitigation Recommendations
Red Hat has released updated RPM packages and container images for OpenShift Container Platform 4.20.16 that fix this vulnerability. Users should upgrade their OpenShift clusters to these updated packages and images as soon as they become available in the appropriate release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console. Detailed upgrade instructions are provided by Red Hat at https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html-single/updating_clusters/index#updating-cluster-cli. Patch status is confirmed as available and remediation is official.
Red Hat Security Advisory: OpenShift Container Platform 4.20.16 security and extras update
Description
Red Hat OpenShift Container Platform 4. 20. 16 includes a security update addressing a memory exhaustion vulnerability in the golang net/url package (CVE-2025-61726). This vulnerability involves query parameter parsing that can lead to excessive memory consumption. Red Hat has released updated RPM packages and container images to fix this issue. Users of OpenShift Container Platform 4. 20 are advised to upgrade to these updated packages and images via the appropriate release channels. The vendor rates the security impact as Important. No known exploits are reported in the wild at this time.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The security advisory for Red Hat OpenShift Container Platform 4.20.16 addresses a vulnerability identified as CVE-2025-61726 in the golang net/url package. The issue is a memory exhaustion vulnerability triggered during query parameter parsing, classified under CWE-770 (Allocation of Resources Without Limits or Throttling). The advisory provides updated RPM packages and container images to remediate this vulnerability. Red Hat recommends upgrading OpenShift Container Platform 4.20 clusters using the OpenShift CLI or web console. The update is rated with an Important security impact by Red Hat Product Security. No CVSS score is provided in the advisory.
Potential Impact
The vulnerability can cause memory exhaustion when parsing query parameters in the golang net/url package, potentially leading to denial of service conditions due to resource depletion. This could affect the stability and availability of OpenShift Container Platform deployments running vulnerable versions. There are no known exploits in the wild currently reported. The vendor rates the impact as Important, indicating a significant but not critical threat level.
Mitigation Recommendations
Red Hat has released updated RPM packages and container images for OpenShift Container Platform 4.20.16 that fix this vulnerability. Users should upgrade their OpenShift clusters to these updated packages and images as soon as they become available in the appropriate release channels. Upgrades can be performed using the OpenShift CLI (oc) or the web console. Detailed upgrade instructions are provided by Red Hat at https://docs.redhat.com/en/documentation/openshift_container_platform/4.20/html-single/updating_clusters/index#updating-cluster-cli. Patch status is confirmed as available and remediation is official.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3856
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a160968e29bf47b5062ddc6
Added to database: 5/26/2026, 8:58:16 PM
Last enriched: 5/26/2026, 9:38:42 PM
Last updated: 5/27/2026, 4:52:28 AM
Views: 3
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