RHSA-2026:20034HighCVSS 9.1
Red Hat Security Advisory: OpenShift Container Platform 4.21.17 bug fix and security update
🔗 CVE IDs covered (6)
📋 Description
CVE-2025-58183 — golang: archive/tar: Unbounded allocation when parsing GNU sparse map CVE-2026-29063 — immutable-js: Immutable.js: Arbitrary code execution via Prototype Pollution CVE-2026-33186 — google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation CVE-2026-34986 — github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object CVE-2026-35469 — Kubelet: CRI-O: kube-apiserver: Kubelet, CRI-O, kube-apiserver: Denial of Service via SPDY streaming code CVE-2026-41674 — xmldom: xmldom: Arbitrary XML markup injection
🔗 References (9)
- selfhttps://access.redhat.com/errata/RHSA-2026:20034
- externalhttps://access.redhat.com/security/cve/CVE-2025-58183
- externalhttps://access.redhat.com/security/cve/CVE-2026-29063
- externalhttps://access.redhat.com/security/cve/CVE-2026-33186
- externalhttps://access.redhat.com/security/cve/CVE-2026-34986
- externalhttps://access.redhat.com/security/cve/CVE-2026-35469
- externalhttps://access.redhat.com/security/cve/CVE-2026-41674
- externalhttps://access.redhat.com/security/updates/classification/
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_20034.json