What is GHSA-26h4-6rvj-cph2?

GHSA-26h4-6rvj-cph2 is a security advisory published by GitHub Security Advisories with Medium severity. Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155 and...

Which CVE IDs does GHSA-26h4-6rvj-cph2 cover?

GHSA-26h4-6rvj-cph2 covers the following CVE IDs: CVE-2026-84118. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-26h4-6rvj-cph2?

GHSA-26h4-6rvj-cph2 has a CVSS v3 base score of 5.4, published by GitHub Security Advisories.

GHSA-26h4-6rvj-cph2MediumCVSS 5.4

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155 and...

Vendor

GitHub Security Advisories

Published

September 1, 2026

Last Modified

September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-84118 →

📋 Description

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 155 and Firefox ESR 153.2.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-84118
https://bugzilla.mozilla.org/show_bug.cgi?id=2057457
https://www.mozilla.org/security/advisories/mfsa2026-82
https://www.mozilla.org/security/advisories/mfsa2026-85
https://www.mozilla.org/security/advisories/mfsa2026-86
https://www.mozilla.org/security/advisories/mfsa2026-88
https://github.com/advisories/GHSA-26h4-6rvj-cph2