CVE-2026-4680

Chromium: CVE-2026-4680 Use after free in FedCM

CVE-2026-4680 is fixed in 11 products on 2 platforms, first by Google Chrome Dev (EXE) 147.0.7695.0, released February 19, 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

0.0043

37th 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	156.0.8078.80	Google Chrome 156.0.8078.80	Oct 29, 2026
Google Chrome (EXE)	146.0.7680.165	Google Chrome (EXE) 146.0.7680.165	Mar 21, 2026
Google Chrome Beta	158.0.8127.2	Google Chrome Beta 158.0.8127.2	Oct 28, 2026
Google Chrome Beta (EXE)	147.0.7727.3	Google Chrome Beta (EXE) 147.0.7727.3	Mar 11, 2026
Google Chrome Dev	159.0.8130.0	Google Chrome Dev 159.0.8130.0	Oct 30, 2026
Google Chrome Dev (EXE)	147.0.7695.0	Google Chrome Dev (EXE) 147.0.7695.0	Feb 19, 2026
Microsoft Edge	146.0.3856.84	Microsoft Edge 146.0.3856.84	Mar 26, 2026
Microsoft Edge Beta	151.0.4129.59	Microsoft Edge Beta 151.0.4129.59	Jul 31, 2026
Microsoft Edge Dev	152.0.4167.0	Microsoft Edge Dev 152.0.4167.0	Jul 20, 2026
Microsoft Edge WebView2 Runtime	146.0.3856.84	Microsoft Edge WebView2 Runtime 146.0.3856.84	Mar 26, 2026
Linux
chromium · Debian 12.15 (bookworm)	146.0.7680.164-1~deb12u1	DEBIAN-CVE-2026-4680	Mar 24, 2026
chromium · Debian 13.5 (trixie)	146.0.7680.164-1~deb13u1	DEBIAN-CVE-2026-4680	Mar 24, 2026
chromium · Debian 14	146.0.7680.164-1	DEBIAN-CVE-2026-4680	Mar 24, 2026
chromium · opensuse-leap 16.0	146.0.7680.177-bp160.1.1	OPENSUSE-SU-2026:20460-1	Aug 31, 2026

Details

Published
March 24, 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://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-4680

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/cve/CVE-2026-4680">CVE-2026-4680 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Is this on your machines?

Patchblox finds every install below the fixed version on Windows, macOS and Linux, and updates them through your release rings.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.