What is RHSA-2026:5396?

RHSA-2026:5396 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: Red Hat Hardened Images RPM Release

Which CVE IDs does RHSA-2026:5396 cover?

RHSA-2026:5396 covers the following CVE IDs: CVE-2025-59375. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:5396?

RHSA-2026:5396 has a CVSS v3 base score of 5.3, published by Red Hat Product Security.

RHSA-2026:5396HighCVSS 5.3

Red Hat Security Advisory: Red Hat Hardened Images RPM Release

Vendor

Red Hat Product Security

Published

March 23, 2026

Last Modified

June 25, 2026

🔗 CVE IDs covered (1)

CVE-2025-59375 →

📋 Description

CVE-2025-59375 — firefox: thunderbird: expat: libexpat in Expat allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing

🔗 References (4)

selfhttps://access.redhat.com/errata/RHSA-2026:5396
externalhttps://access.redhat.com/security/cve/CVE-2025-59375
externalhttps://access.redhat.com/security/updates/classification/
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_5396.json