Red Hat Security Advisory: containernetworking-plugins security update
🔗 CVE IDs covered (7)
📋 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 CVE-2026-25679 — net/url: Incorrect parsing of IPv6 host literals in net/url CVE-2026-32280 — crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building CVE-2026-32281 — crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation CVE-2026-32283 — crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages
🎯 Affected products14
- Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-1:1.2.0-3.el9_2.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-1:1.2.0-3.el9_2.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-1:1.2.0-3.el9_2.3.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-1:1.2.0-3.el9_2.3.src as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-1:1.2.0-3.el9_2.3.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debuginfo-1:1.2.0-3.el9_2.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debuginfo-1:1.2.0-3.el9_2.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debuginfo-1:1.2.0-3.el9_2.3.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debuginfo-1:1.2.0-3.el9_2.3.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debugsource-1:1.2.0-3.el9_2.3.aarch64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debugsource-1:1.2.0-3.el9_2.3.ppc64le as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debugsource-1:1.2.0-3.el9_2.3.s390x as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
- containernetworking-plugins-debugsource-1:1.2.0-3.el9_2.3.x86_64 as a component of Red Hat Enterprise Linux AppStream E4S (v.9.2)
✅ 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. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
🔗 References (7)
- selfhttps://access.redhat.com/errata/RHSA-2026:25251
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2418462
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2434432
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2437111
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2445356
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_25251.json