What is GHSA-97fr-g29v-hhwf?

GHSA-97fr-g29v-hhwf is a security advisory published by GitHub Security Advisories with Critical severity. Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153 and Firefox...

Which CVE IDs does GHSA-97fr-g29v-hhwf cover?

GHSA-97fr-g29v-hhwf covers the following CVE IDs: CVE-2026-16396. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-97fr-g29v-hhwf?

GHSA-97fr-g29v-hhwf has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-97fr-g29v-hhwfCriticalCVSS 9.8

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153 and Firefox...

Vendor

GitHub Security Advisories

Published

July 21, 2026

Last Modified

July 22, 2026

🔗 CVE IDs covered (1)

CVE-2026-16396 →

📋 Description

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.

🔗 References (7)

https://nvd.nist.gov/vuln/detail/CVE-2026-16396
https://bugzilla.mozilla.org/show_bug.cgi?id=2047240
https://www.mozilla.org/security/advisories/mfsa2026-68
https://www.mozilla.org/security/advisories/mfsa2026-70
https://www.mozilla.org/security/advisories/mfsa2026-71
https://www.mozilla.org/security/advisories/mfsa2026-72
https://github.com/advisories/GHSA-97fr-g29v-hhwf