CVE-2026-113271

Chromium CVE-2026-113271: Use after free

CVE-2026-113271 is fixed in 9 products on 3 platforms, first by Google Chrome Dev (EXE) 157.0.8081.0, released October 1, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

UrgentFixed on 3 platforms

CVSS

8.8

Critical

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0051

43rd percentile

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2026">Google Chrome Releases</a> for more information.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Google Chrome (EXE)	156.0.8078.48	Google Chrome (EXE) 156.0.8078.48	Oct 20, 2026
Google Chrome Beta (EXE)	157.0.8103.6	Google Chrome Beta (EXE) 157.0.8103.6	Oct 15, 2026
Google Chrome Dev (EXE)	157.0.8081.0	Google Chrome Dev (EXE) 157.0.8081.0	Oct 1, 2026
Microsoft Edge	156.0.4314.42	Microsoft Edge 156.0.4314.42	Oct 22, 2026
Microsoft Edge Beta	157.0.4341.10	Microsoft Edge Beta 157.0.4341.10	Oct 20, 2026
Microsoft Edge Dev	157.0.4322.0	Microsoft Edge Dev 157.0.4322.0	Oct 6, 2026
Microsoft Edge WebView2 Runtime	156.0.4314.42	Microsoft Edge WebView2 Runtime 156.0.4314.42	Oct 22, 2026
macOS
Google Chrome	156.0.8078.48	Google Chrome 156.0.8078.48	Oct 19, 2026
Microsoft Edge	156.0.4314.42	Microsoft Edge 156.0.4314.42	Oct 21, 2026
Linux
chromium · Debian 12.15 (bookworm)	156.0.8078.47-1~deb12u1	DEBIAN-CVE-2026-113271	Oct 24, 2026
chromium · Debian 13.5 (trixie)	156.0.8078.47-1~deb13u1	DEBIAN-CVE-2026-113271	Oct 24, 2026
chromium · Debian 14	156.0.8078.47-1	DEBIAN-CVE-2026-113271	Oct 24, 2026
chromium · opensuse-leap 16.0	156.0.8078.47-bp160.1.1	OPENSUSE-SU-2026:22185-1	Nov 7, 2026

Details

Published
October 20, 2026
Weakness
Use After Free
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-113271

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