CVE-2026-10997

chromium-browser: Insufficient policy enforcement in Extensions

Published Jun 4, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Insufficient policy enforcement in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted Chrome Extension. (Chromium security severity: Medium)

Analysis

AI-generated

Technical impact

Insufficient policy enforcement in Google Chrome extensions allows an attacker who convinces a user to install a malicious extension to bypass discretionary access control. This weakness corresponds to CWE-280 and CWE-732. The crafted extension can acquire privileges beyond those intended for an extension, and based on the description, it is inferred that the attacker could read, modify, or delete user data and execute restricted operations.

Affected Systems

Google Chrome versions prior to 149.0.7827.53 are affected. No additional vendor or product details are listed.

Risk and Exploitability

The vulnerability is exploitable once a user installs a malicious extension; the attacker must otherwise convince the user to do so. The EPSS score is less than 1%, and the vulnerability is not listed in KEV, indicating a low to moderate likelihood of exploitation. The CVSS score is 6.5 (Medium), and Chromium security severity is Medium, indicating a significant risk if the vulnerability is leveraged. No official patch or workaround is listed, so updating the browser is the primary mitigation strategy.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Google Chrome to the latest stable release
  • Disable or uninstall any untrusted or suspicious extensions
  • Monitor for future releases and apply patches as soon as they are available

Generated by OpenCVE AI on June 7, 2026 at 15:26 UTC.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title Chrome Extension Bypass Granting Unauthorized Privileges chromium-browser: Insufficient policy enforcement in Extensions
Weaknesses CWE-280
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Chrome Extension Bypass Granting Unauthorized Privileges
Type Values Removed Values Added
Title Malicious Extension Bypass of Access Control in Chrome Prior to 149.0.7827.53
Weaknesses CWE-284
CWE-285
Type Values Removed Values Added
Weaknesses CWE-732
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Metrics cvssV3_1

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

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Malicious Extension Bypass of Access Control in Chrome Prior to 149.0.7827.53
Weaknesses CWE-284
CWE-285
Type Values Removed Values Added
Description Insufficient policy enforcement in Extensions in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted Chrome Extension. (Chromium security severity: Medium)
References
Weaknesses
  • CWE-280

    Improper Handling of Insufficient Permissions or Privileges

  • CWE-732

    Incorrect Permission Assignment for Critical Resource

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 8, 2026, 4:29 PM
Reserved
Jun 4, 2026, 5:06 PM
Status
Modified
Published
Jun 4, 2026, 11:17 PM
Modified
Jul 22, 2026, 8:10 PM
Severity
Moderate
Public date
Jun 2, 2026, 12:00 AM