What is GHSA-rmrv-48gv-336h?

GHSA-rmrv-48gv-336h is a security advisory published by GitHub Security Advisories with Critical severity. Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker...

Which CVE IDs does GHSA-rmrv-48gv-336h cover?

GHSA-rmrv-48gv-336h covers the following CVE IDs: CVE-2026-9886. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rmrv-48gv-336h?

GHSA-rmrv-48gv-336h has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

GHSA-rmrv-48gv-336hCriticalCVSS 9.6

Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker...

Vendor

GitHub Security Advisories

Published

May 29, 2026

Last Modified

May 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-9886 →

📋 Description

Use after free in Base in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-9886
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html
https://issues.chromium.org/issues/508456788
https://github.com/advisories/GHSA-rmrv-48gv-336h