CVE-2026-12020

Google Chrome: Use after free

CVE-2026-12020 is fixed in 2 products on 2 platforms, first by Google Chrome 149.0.7827.156, released June 16, 2026. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms

CVSS

8.8

high

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0022

13th percentile

Use after free in Autofill in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Where it's fixed

Product	Fixed in	Fix	Released
macOS
Google Chrome	149.0.7827.156	Google Chrome 149.0.7827.156	Jun 16, 2026
Linux
chromium · Debian 12.15 (bookworm)	149.0.7827.114-1~deb12u1	DEBIAN-CVE-2026-12020	Jun 24, 2026
chromium · Debian 13.5 (trixie)	149.0.7827.114-1~deb13u1	DEBIAN-CVE-2026-12020	Jun 24, 2026
chromium · Debian 14	149.0.7827.114-1	DEBIAN-CVE-2026-12020	Jun 24, 2026
chromium · opensuse-leap 16.0	149.0.7827.155-bp160.1.1	OPENSUSE-SU-2026:21135-1	Aug 31, 2026

Details

Published
June 11, 2026
Weakness
CWE-416: 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://nvd.nist.gov/vuln/detail/CVE-2026-12020

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