CVE-2026-12034

Currently unrated

Key Information:

Vendor: Google
Status: Chrome
Vendor: CVE Published:; 11 June 2026

What is CVE-2026-12034?

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)

Affected Version(s)

Chrome 149.0.7827.115

References

https://chromereleases.googleblog.com/2026/06/stable-chan...

https://issues.chromium.org/issues/519258799

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jun 11, 2026
Vulnerability Reserved
Jun 11, 2026

CVE-2026-12034 Data

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