What is GHSA-77rq-hw97-qcw2?

GHSA-77rq-hw97-qcw2 is a security advisory published by GitHub Security Advisories with High severity. Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5.

Which CVE IDs does GHSA-77rq-hw97-qcw2 cover?

GHSA-77rq-hw97-qcw2 covers the following CVE IDs: CVE-2026-109782. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-77rq-hw97-qcw2?

GHSA-77rq-hw97-qcw2 has a CVSS v3 base score of 8.3, published by GitHub Security Advisories.

GHSA-77rq-hw97-qcw2HighCVSS 8.3

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5.

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-109782 →

📋 Description

Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox ESR 153.5.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-109782
https://bugzilla.mozilla.org/show_bug.cgi?id=2067465
https://www.mozilla.org/security/advisories/mfsa2026-108
https://www.mozilla.org/security/advisories/mfsa2026-110
https://github.com/advisories/GHSA-77rq-hw97-qcw2