CVE-2026-7339

high

Published 2026-04-28 · Modified 2026-04-30

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CVSS v3

8.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

8.8

Description

Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

Predictions

Exploit likelihood

92%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-7339 NameCVE-2026-7339 DescriptionHeap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium) SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search,…

CVE-2026-7339

Name	CVE-2026-7339
Description	Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-6239-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
chromium (PTS)	bullseye (security), bullseye	120.0.6099.224-1~deb11u1	vulnerable
	bookworm	147.0.7727.137-1~deb12u1	fixed
	bookworm (security)	148.0.7778.215-1~deb12u1	fixed
	trixie	147.0.7727.137-1~deb13u1	fixed
	trixie (security)	148.0.7778.215-1~deb13u1	fixed
	forky	148.0.7778.178-1	fixed
	sid	148.0.7778.215-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin
chromium	source	bullseye	(unfixed)	end-of-life
chromium	source	bookworm	147.0.7727.137-1~deb12u1		DSA-6239-1
chromium	source	trixie	147.0.7727.137-1~deb13u1		DSA-6239-1
chromium	source	(unstable)	147.0.7727.137-1

Notes

[bullseye] - chromium <end-of-life> (see #1061268)

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[bullseye] - chromium <end-of-life> (see #1061268)

OS impact

Debian Mixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`147.0.7727.137-1~deb13u1`
sid	Fixed	`147.0.7727.137-1`
forky	Fixed	`147.0.7727.137-1`
bullseye	Affected	—
bookworm	Fixed	`147.0.7727.137-1~deb12u1`

Linux kernel Fixed 1 release

Version	Status	Fixed in
-	Not affected	—

macOS Fixed 1 release

Version	Status	Fixed in
-	Not affected	—

Application impact

Vendor	Product	Versions	Fixed
google	chrome	`{"endExcluding":"147.0.7727.138"}`	`147.0.7727.138`

References

CWEs

CWE-122

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.