What is GHSA-ff86-g5q4-g658?

GHSA-ff86-g5q4-g658 is a security advisory published by GitHub Security Advisories with High severity. Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to...

Which CVE IDs does GHSA-ff86-g5q4-g658 cover?

GHSA-ff86-g5q4-g658 covers the following CVE IDs: CVE-2026-91721. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-ff86-g5q4-g658?

GHSA-ff86-g5q4-g658 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-ff86-g5q4-g658HighCVSS 8.8

Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to...

Vendor

GitHub Security Advisories

Published

September 15, 2026

Last Modified

September 16, 2026

🔗 CVE IDs covered (1)

CVE-2026-91721 →

📋 Description

Use after free in Internals in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-91721
https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html
https://issues.chromium.org/issues/557320614
https://github.com/advisories/GHSA-ff86-g5q4-g658