CVE-2026-91749

critical

Description

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)

References

https://www.securityweek.com/chrome-firefox-updates-patch-115-vulnerabilities/

https://issues.chromium.org/issues/558456602

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html

Details

Source: Mitre, NVD

Published: 2026-09-15

Updated: 2026-09-16

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