CVE-2026-13029: High Use after free in Web Authentication
Chromium: CVE-2026-13029 Use after free in Web Authentication
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Use after free in Web Authentication in Google Chrome prior to 149.0.7827.197 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 149.0.4022.96 - Upgrade
Upgrade
Google Chrome / Chromium (Web Authentication)to a version that resolves this vulnerability.Fixed in 149.0.7827.197
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-13029?
CVE-2026-13029 has a high severity rating of 7.5 according to the CVSS 3.1 scoring system.
How do I fix CVE-2026-13029?
To fix CVE-2026-13029, users should update their Google Chrome or Microsoft Edge browsers to the latest version where the vulnerability is patched.
What type of vulnerability is CVE-2026-13029?
CVE-2026-13029 is classified as a use after free vulnerability in the Web Authentication component of Google Chrome.
Which software products are affected by CVE-2026-13029?
CVE-2026-13029 affects Google Chrome and Microsoft Edge (Chromium-based) browser versions prior to the fix.
Who assigned the CVE-2026-13029 identifier?
The CVE-2026-13029 identifier was assigned by Google Chrome's security team.