CVE-2026-91749

Critical CVSS 9.6

Published 2026-09-15 · last changed 2026-09-24

The fix

We hold no Microsoft remediation data for CVE-2026-91749, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

Sources

NVD record for CVE-2026-91749

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H