CVE-2026-121194

Medium CVSS 5.3

Published 2026-11-03 · last changed 2026-11-05

The fix

We hold no Microsoft remediation data for CVE-2026-121194, 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

Missing authorization in SiteIsolation in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted PDF file. (Chromium security severity: Medium)

Sources

NVD record for CVE-2026-121194

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