CVE-2026-91734

High CVSS 7.4

Published 2026-09-15 · last changed 2026-09-17

The fix

We hold no Microsoft remediation data for CVE-2026-91734, 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

Incorrect authorization in Core in Google Chrome on on Windows prior to 153.0.8010.47 allowed a local attacker to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)

Sources

NVD record for CVE-2026-91734

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