CVE-2026-4680 - chromium-browser: Use after free in FedCM

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HIGH

chromium-browser: Use after free in FedCM

Published Mar 24, 2026

8.8

HIGH

CVSS 3.1

EPSS 0.41%

Description

Use after free in FedCM in Google Chrome prior to 146.0.7680.165 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Affected products

Vendor Google Product Chrome Default
n/a
- Version
  146.0.7680.165
  Status
  affected
  Constraints
  <146.0.7680.165

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Google

Chrome

n/a

Version	Status	Constraints
146.0.7680.165	affected	<146.0.7680.165

Remediation

Red Hat statement

Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.

Weaknesses (2)

CWE-416

Use After Free

CWE-825

References (7)

https://access.redhat.com/security/cve/CVE-2026-4680
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2450568
Issue Tracking
https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_23.html
Release NotesVendor Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-14688
Advisory
https://issues.chromium.org/issues/491869946
Permissions Required
https://nvd.nist.gov/vuln/detail/CVE-2026-4680
https://www.cve.org/CVERecord?id=CVE-2026-4680

Link	Providers	Tags
https://access.redhat.com/security/cve/CVE-2026-4680		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2450568		Issue Tracking
https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_23.html		Release NotesVendor Advisory
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-14688		Advisory
https://issues.chromium.org/issues/491869946		Permissions Required
https://nvd.nist.gov/vuln/detail/CVE-2026-4680
https://www.cve.org/CVERecord?id=CVE-2026-4680