CVE-2026-11143

chromium-browser: Heap buffer overflow in Extensions

Published Jun 4, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Type Values Removed Values Added
Title Out-of-Bounds Read in Chrome Linux Extensions Enables Sensitive Data Disclosure chromium-browser: Heap buffer overflow in Extensions
Weaknesses CWE-125
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Out-of-Bounds Read in Chrome Linux Extensions Enables Sensitive Data Disclosure
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

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

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Description Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security severity: Medium)
Weaknesses CWE-122
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 8, 2026, 6:42 PM
Reserved
Jun 4, 2026, 5:10 PM
Status
Modified
Published
Jun 4, 2026, 11:17 PM
Modified
Jul 23, 2026, 7:10 AM
Severity
Moderate
Public date
Jun 2, 2026, 12:00 AM