What is GHSA-3h3x-m88j-vrhj?

GHSA-3h3x-m88j-vrhj is a security advisory published by GitHub Security Advisories with High severity. Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155.

Which CVE IDs does GHSA-3h3x-m88j-vrhj cover?

GHSA-3h3x-m88j-vrhj covers the following CVE IDs: CVE-2026-84128. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-3h3x-m88j-vrhj?

GHSA-3h3x-m88j-vrhj has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-3h3x-m88j-vrhjHighCVSS 8.8

Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155.

Vendor

GitHub Security Advisories

Published

September 1, 2026

Last Modified

September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-84128 →

📋 Description

Privilege escalation in the WebDriver BiDi component. This vulnerability was fixed in Firefox 155.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-84128
https://bugzilla.mozilla.org/show_bug.cgi?id=2044280
https://www.mozilla.org/security/advisories/mfsa2026-82
https://www.mozilla.org/security/advisories/mfsa2026-86
https://github.com/advisories/GHSA-3h3x-m88j-vrhj