CVE-2026-12009

chromium-browser: chromium-browser: Insufficient validation of untrusted input  Accessibility

Published Jun 11, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
Description
Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 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)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6344-1 chromium security update
History
Type Values Removed Values Added
Title Insufficient Input Validation in Accessibility Module Enables Sandbox Escape on Chrome for macOS chromium-browser: chromium-browser: Insufficient validation of untrusted input  Accessibility
Weaknesses CWE-1286
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Title Insufficient Input Validation in Accessibility Module Enables Sandbox Escape on Chrome for macOS
Type Values Removed Values Added
First Time appeared Apple
Apple macos
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Title Accessibility Input Validation Flaw Enables Sandbox Escape in Chrome on macOS
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Accessibility Input Validation Flaw Enables Sandbox Escape in Chrome on macOS
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Description Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 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)
Weaknesses CWE-20
References

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 12, 2026, 3:56 AM
Reserved
Jun 11, 2026, 6:16 PM
Status
Analyzed
Published
Jun 11, 2026, 10:16 PM
Modified
Oct 26, 2026, 11:10 AM
Severity
Important
Public date
Jun 11, 2026, 8:48 PM