What is RHSA-2026:21703?

RHSA-2026:21703 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: OpenShift Container Platform 4.20.24 bug fix and security update

Which CVE IDs does RHSA-2026:21703 cover?

RHSA-2026:21703 covers the following CVE IDs: CVE-2026-26996, CVE-2026-29063, CVE-2026-33186, CVE-2026-34986, CVE-2026-41674. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:21703?

RHSA-2026:21703 has a CVSS v3 base score of 9.1, published by Red Hat Product Security.

RHSA-2026:21703HighCVSS 9.1

Red Hat Security Advisory: OpenShift Container Platform 4.20.24 bug fix and security update

Vendor

Red Hat Product Security

Published

June 3, 2026

Last Modified

June 3, 2026

🔗 CVE IDs covered (5)

CVE-2026-26996 · pendingCVE-2026-29063 →CVE-2026-33186 →CVE-2026-34986 →CVE-2026-41674 →

📋 Description

CVE-2026-26996 — minimatch: minimatch: Denial of Service via specially crafted glob patterns 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-2026-41674 — xmldom: xmldom: Arbitrary XML markup injection

🔗 References (8)

selfhttps://access.redhat.com/errata/RHSA-2026:21703
externalhttps://access.redhat.com/security/cve/CVE-2026-26996
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-2026-41674
externalhttps://access.redhat.com/security/updates/classification/
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_21703.json