Red Hat Security Advisory: OpenShift Container Platform 4.18.35 packages and security update
Red Hat OpenShift Container Platform 4. 18. 35 includes security updates addressing two vulnerabilities in Golang components: a memory exhaustion issue in net/url query parameter parsing (CVE-2025-61726) and an unbounded allocation vulnerability when parsing GNU sparse map in archive/tar (CVE-2025-58183). These issues could lead to resource exhaustion. Red Hat has released updated RPM packages and container images to fix these vulnerabilities and advises all OpenShift Container Platform 4. 18 users to upgrade accordingly.
AI Analysis
Technical Summary
This advisory covers security fixes for Red Hat OpenShift Container Platform 4.18.35, specifically addressing two Golang-related vulnerabilities: CVE-2025-61726, a memory exhaustion vulnerability in net/url during query parameter parsing, and CVE-2025-58183, an unbounded memory allocation vulnerability in archive/tar when parsing GNU sparse maps. Both vulnerabilities relate to improper handling of input data leading to excessive memory consumption. The update includes RPM packages and container images to remediate these issues. Users are advised to upgrade using the OpenShift CLI or web console following Red Hat's documented procedures.
Potential Impact
The vulnerabilities can cause memory exhaustion or unbounded memory allocation, potentially leading to denial of service conditions in affected OpenShift Container Platform 4.18 deployments. No known exploits in the wild have been reported. The impact is rated as high by Red Hat Product Security, indicating significant risk if unpatched.
Mitigation Recommendations
Red Hat has released updated packages and container images for OpenShift Container Platform 4.18.35 that address these vulnerabilities. Users should upgrade to these updated versions via the appropriate release channels using the OpenShift CLI (oc) or web console. Detailed upgrade instructions are available in Red Hat's official documentation. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
Red Hat Security Advisory: OpenShift Container Platform 4.18.35 packages and security update
Description
Red Hat OpenShift Container Platform 4. 18. 35 includes security updates addressing two vulnerabilities in Golang components: a memory exhaustion issue in net/url query parameter parsing (CVE-2025-61726) and an unbounded allocation vulnerability when parsing GNU sparse map in archive/tar (CVE-2025-58183). These issues could lead to resource exhaustion. Red Hat has released updated RPM packages and container images to fix these vulnerabilities and advises all OpenShift Container Platform 4. 18 users to upgrade accordingly.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers security fixes for Red Hat OpenShift Container Platform 4.18.35, specifically addressing two Golang-related vulnerabilities: CVE-2025-61726, a memory exhaustion vulnerability in net/url during query parameter parsing, and CVE-2025-58183, an unbounded memory allocation vulnerability in archive/tar when parsing GNU sparse maps. Both vulnerabilities relate to improper handling of input data leading to excessive memory consumption. The update includes RPM packages and container images to remediate these issues. Users are advised to upgrade using the OpenShift CLI or web console following Red Hat's documented procedures.
Potential Impact
The vulnerabilities can cause memory exhaustion or unbounded memory allocation, potentially leading to denial of service conditions in affected OpenShift Container Platform 4.18 deployments. No known exploits in the wild have been reported. The impact is rated as high by Red Hat Product Security, indicating significant risk if unpatched.
Mitigation Recommendations
Red Hat has released updated packages and container images for OpenShift Container Platform 4.18.35 that address these vulnerabilities. Users should upgrade to these updated versions via the appropriate release channels using the OpenShift CLI (oc) or web console. Detailed upgrade instructions are available in Red Hat's official documentation. Since this is an official fix, applying the update fully mitigates the vulnerabilities.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:3875
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-61726"]
- Cvss Version
- null
Threat ID: 6a160968e29bf47b5062dd9d
Added to database: 5/26/2026, 8:58:16 PM
Last enriched: 5/26/2026, 9:38:30 PM
Last updated: 5/27/2026, 4:56:11 AM
Views: 2
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