What is GHSA-82mj-x5m6-cm4j?

GHSA-82mj-x5m6-cm4j is a security advisory published by GitHub Security Advisories with High severity. Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote...

Which CVE IDs does GHSA-82mj-x5m6-cm4j cover?

GHSA-82mj-x5m6-cm4j covers the following CVE IDs: CVE-2026-12437. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-82mj-x5m6-cm4j?

GHSA-82mj-x5m6-cm4j has a CVSS v3 base score of 8.3, published by GitHub Security Advisories.

GHSA-82mj-x5m6-cm4jHighCVSS 8.3

Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote...

Vendor

GitHub Security Advisories

Published

June 17, 2026

Last Modified

June 17, 2026

🔗 CVE IDs covered (1)

CVE-2026-12437 →

📋 Description

Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-12437
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01750511403.html
https://issues.chromium.org/issues/516496659
https://github.com/advisories/GHSA-82mj-x5m6-cm4j