CVE-2026-12034

HighCVSS 8.3/10Last modified Oct 26, 2026

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)

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-20

Affected software

Vendor	Product	Versions
Google	Chrome	>= 149.0.7827.115, < 149.0.7827.115

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.htmlVendor Advisory
https://issues.chromium.org/issues/519258799Issue Tracking, Permissions Required

Timeline

Published: Jun 11, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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