What is GHSA-h8rm-48w7-7wp9?

GHSA-h8rm-48w7-7wp9 is a security advisory published by GitHub Security Advisories with Medium severity. Information disclosure, sandbox escape in the Security: Process Sandboxing component. This...

Which CVE IDs does GHSA-h8rm-48w7-7wp9 cover?

GHSA-h8rm-48w7-7wp9 covers the following CVE IDs: CVE-2026-12313. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-h8rm-48w7-7wp9?

GHSA-h8rm-48w7-7wp9 has a CVSS v3 base score of 4.7, published by GitHub Security Advisories.

GHSA-h8rm-48w7-7wp9MediumCVSS 4.7

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This...

Vendor

GitHub Security Advisories

Published

June 16, 2026

Last Modified

June 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-12313 →

📋 Description

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152 and Firefox ESR 140.12.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-12313
https://bugzilla.mozilla.org/show_bug.cgi?id=2040477
https://www.mozilla.org/security/advisories/mfsa2026-57
https://www.mozilla.org/security/advisories/mfsa2026-58
https://github.com/advisories/GHSA-h8rm-48w7-7wp9