What is GHSA-cc2r-m9h8-v7mj?

GHSA-cc2r-m9h8-v7mj is a security advisory published by GitHub Security Advisories with High severity. Insufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux...

Which CVE IDs does GHSA-cc2r-m9h8-v7mj cover?

GHSA-cc2r-m9h8-v7mj covers the following CVE IDs: CVE-2026-12034. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cc2r-m9h8-v7mj?

GHSA-cc2r-m9h8-v7mj has a CVSS v3 base score of 8.3, published by GitHub Security Advisories.

GHSA-cc2r-m9h8-v7mjHighCVSS 8.3

Insufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux...

Vendor

GitHub Security Advisories

Published

June 12, 2026

Last Modified

June 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-12034 →

📋 Description

Insufficient validation of untrusted input in Linux Toolkit Theming in Google Chrome on Linux prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-12034
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html
https://issues.chromium.org/issues/519258799
https://github.com/advisories/GHSA-cc2r-m9h8-v7mj