What is RHSA-2026:36759?

RHSA-2026:36759 is a security advisory published by Red Hat Product Security with Medium severity. Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Which CVE IDs does RHSA-2026:36759 cover?

RHSA-2026:36759 covers the following CVE IDs: CVE-2026-55655, CVE-2026-55653, CVE-2026-55654. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:36759?

RHSA-2026:36759 has a CVSS v3 base score of 5.0, published by Red Hat Product Security.

RHSA-2026:36759MediumCVSS 5.0

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Vendor

Red Hat Product Security

Published

July 8, 2026

Last Modified

July 19, 2026

🔗 CVE IDs covered (3)

CVE-2026-55655 →CVE-2026-55653 →CVE-2026-55654 →

📋 Description

CVE-2026-55653 — openssh: Double free in Red Hat Enterprise Linux versions of OpenSSH DH-GEX client path during FIPS known-group validation leads to client-side denial of service CVE-2026-55654 — openssh: Heap out-of-bounds read in Red Hat Enterprise Linux versions of OpenSSH GSSAPI indicator cleanup due to missing NULL sentinel termination CVE-2026-55655 — openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Red Hat Enterprise Linux OpenSSH client versions

🔗 References (7)

selfhttps://access.redhat.com/errata/RHSA-2026:36759
externalhttps://images.redhat.com/
externalhttps://access.redhat.com/security/cve/CVE-2026-55655
externalhttps://access.redhat.com/security/updates/classification/
externalhttps://access.redhat.com/security/cve/CVE-2026-55654
externalhttps://access.redhat.com/security/cve/CVE-2026-55653
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36759.json