CVE-2026-121185

critical

Description

Use after free in PictureInPicture in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

References

https://issues.chromium.org/issues/565681453

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-116517

https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html

Details

Source: Mitre, NVD

Published: 2026-11-03

Updated: 2026-11-04

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.6

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