What is RHSA-2026:20574?

RHSA-2026:20574 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: firefox security update

Which CVE IDs does RHSA-2026:20574 cover?

RHSA-2026:20574 covers the following CVE IDs: CVE-2026-8090, CVE-2026-8092, CVE-2026-8094. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:20574?

RHSA-2026:20574 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

RHSA-2026:20574HighCVSS 7.5

Red Hat Security Advisory: firefox security update

Vendor

Red Hat Product Security

Published

May 26, 2026

Last Modified

May 26, 2026

🔗 CVE IDs covered (3)

CVE-2026-8090 →CVE-2026-8092 →CVE-2026-8094 →

📋 Description

CVE-2026-8090 — firefox: Use-after-free in the DOM: Networking component CVE-2026-8092 — firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 CVE-2026-8094 — firefox: Other issue in the WebRTC component

🔗 References (6)

selfhttps://access.redhat.com/errata/RHSA-2026:20574
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467706
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467708
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2467709
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_20574.json