What is GHSA-x259-9v3j-p8mg?

GHSA-x259-9v3j-p8mg is a security advisory published by GitHub Security Advisories with High severity. Use after free in Accessibility in Google Chrome prior to 157.0.8103.78 allowed a remote attacker...

Which CVE IDs does GHSA-x259-9v3j-p8mg cover?

GHSA-x259-9v3j-p8mg covers the following CVE IDs: CVE-2026-126921. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-x259-9v3j-p8mg?

GHSA-x259-9v3j-p8mg has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-x259-9v3j-p8mgHighCVSS 8.8

Use after free in Accessibility in Google Chrome prior to 157.0.8103.78 allowed a remote attacker...

Vendor

GitHub Security Advisories

Published

November 12, 2026

Last Modified

November 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-126921 →

📋 Description

Use after free in Accessibility in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-126921
https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html
https://issues.chromium.org/issues/580869107
https://github.com/advisories/GHSA-x259-9v3j-p8mg