RHSA-2026:18913HighCVSS 7.5

Red Hat Security Advisory: containernetworking-plugins security update

Published
May 19, 2026
Last Modified
August 10, 2026

🔗 CVE IDs covered (3)

CVE-2025-61726 →CVE-2025-61729 →CVE-2025-68121 →

📋 Description

CVE-2025-61726 — golang: net/url: Memory exhaustion in query parameter parsing in net/url CVE-2025-61729 — crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate CVE-2025-68121 — crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

🎯 Affected products14

  • Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-1:1.9.0-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-1:1.9.0-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-1:1.9.0-2.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-1:1.9.0-2.el9.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-1:1.9.0-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debuginfo-1:1.9.0-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debuginfo-1:1.9.0-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debuginfo-1:1.9.0-2.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debuginfo-1:1.9.0-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debugsource-1:1.9.0-2.el9.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debugsource-1:1.9.0-2.el9.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debugsource-1:1.9.0-2.el9.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • containernetworking-plugins-debugsource-1:1.9.0-2.el9.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

🔗 References (8)