What is RHSA-2026:34764?

RHSA-2026:34764 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: OpenShift Container Platform 4.21.23 bug fix and security update

Which CVE IDs does RHSA-2026:34764 cover?

RHSA-2026:34764 covers the following CVE IDs: CVE-2026-42010, CVE-2026-46243, CVE-2026-42009. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:34764?

RHSA-2026:34764 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

RHSA-2026:34764HighCVSS 7.8

Red Hat Security Advisory: OpenShift Container Platform 4.21.23 bug fix and security update

Vendor

Red Hat Product Security

Published

July 7, 2026

Last Modified

July 9, 2026

🔗 CVE IDs covered (3)

CVE-2026-42010 →CVE-2026-46243 →CVE-2026-42009 →

📋 Description

CVE-2026-42009 — gnutls: gnutls: Denial of Service via DTLS packet reordering vulnerability CVE-2026-42010 — gnutls: gnutls: Authentication Bypass via NUL Character in Username CVE-2026-46243 — kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions

🔗 References (7)

selfhttps://access.redhat.com/errata/RHSA-2026:34764
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467279
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467289
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2481486
externalhttps://issues.redhat.com/browse/OCPBUGS-88740
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_34764.json