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CVE-2026-10997 Google CVE debrief

CVE-2026-10997 is a Medium severity vulnerability in Google Chrome prior to version 149.0.7827.53. The vulnerability is caused by insufficient policy enforcement in Extensions, which allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted Chrome Extension. The Chromium security severity is Medium, with a CVSS score of 6.5.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-08
Advisory published
2026-06-04
Advisory updated
2026-06-08

Who should care

Users of Google Chrome prior to version 149.0.7827.53, administrators of systems with Google Chrome installed, and security teams responsible for patching and vulnerability management.

Technical summary

The vulnerability is caused by insufficient policy enforcement in Extensions in Google Chrome prior to version 149.0.7827.53. An attacker who convinces a user to install a malicious extension can bypass discretionary access control via a crafted Chrome Extension.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Ensure that users are cautious when installing extensions from unknown sources.
  • Monitor for suspicious activity and implement additional security measures as needed.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Additional information can be found in the Chrome release notes [ref-4] and Chromium issue tracker [ref-5].

Official resources

CVE-2026-10997 was published on 2026-06-04T23:17:03.357Z and modified on 2026-06-08T17:16:34.500Z.