RHSA-2026:91483HighCVSS 7.5
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
🔗 CVE IDs covered (1)
📋 Description
CVE-2026-116591 — github.com/klauspost/compress/zstd: klauspost/compress: Denial of Service via crafted zstd compressed input
🎯 Affected products4
- Red Hat Hardened Images
- prometheus3.13-0:3.13.5-0.2.hum1@aarch64 as a component of Red Hat Hardened Images
- prometheus3.13-0:3.13.5-0.2.hum1@src as a component of Red Hat Hardened Images
- prometheus3.13-0:3.13.5-0.2.hum1@x86_64 as a component of Red Hat Hardened Images
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://images.redhat.com/ Workaround: Reject or filter untrusted Zstandard-compressed payloads at ingress proxies, or restrict decompression endpoints to authenticated, trusted clients. No direct configuration-level workaround exists within the library itself.
🔗 References (5)
- selfhttps://access.redhat.com/errata/RHSA-2026:91483
- externalhttps://access.redhat.com/security/cve/CVE-2026-116591
- externalhttps://access.redhat.com/security/updates/classification/
- externalhttps://images.redhat.com/
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_91483.json