What is GHSA-9x9x-4c34-42c8?

GHSA-9x9x-4c34-42c8 is a security advisory published by GitHub Security Advisories with Critical severity. Use after free in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote...

Which CVE IDs does GHSA-9x9x-4c34-42c8 cover?

GHSA-9x9x-4c34-42c8 covers the following CVE IDs: CVE-2026-87646. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9x9x-4c34-42c8?

GHSA-9x9x-4c34-42c8 has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

GHSA-9x9x-4c34-42c8CriticalCVSS 9.6

Use after free in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote...

Vendor

GitHub Security Advisories

Published

September 9, 2026

Last Modified

September 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-87646 →

📋 Description

Use after free in Web Authentication in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-87646
https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html
https://issues.chromium.org/issues/539754136
https://github.com/advisories/GHSA-9x9x-4c34-42c8