CVE-2026-58042

medium

Published 2026-08-04 · Modified 2026-08-04

Discuss on Community Propose mitigation

CVSS v3

5.9

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.9

Description

A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records. Repeated triggering of this condition can lead to denial of service. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

Predictions

Exploit likelihood

69%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2026-58042 NameCVE-2026-58042 SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) Vulnerable and fixed packages The table below lists information on source packages. Source PackageReleaseVersionStatus nodejs (PTS)bullseye12.22.12~dfsg-1~deb11u4vulnerable bullseye…

CVE-2026-58042

Name	CVE-2026-58042
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
nodejs (PTS)	bullseye	12.22.12~dfsg-1~deb11u4	vulnerable
	bullseye (security)	12.22.12~dfsg-1~deb11u8	vulnerable
	bookworm, bookworm (security)	18.20.4+dfsg-1~deb12u2	vulnerable
	trixie (security), trixie	20.19.2+dfsg-1+deb13u2	vulnerable
	forky, sid	24.18.0+dfsg+~cs24.13.2-1	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nodejs	source	(unstable)	(unfixed)

Notes

https://nodejs.org/en/blog/vulnerability/july-2026-security-releases#dnsresolveany-can-abort-on-dns-responses-with-many-a-records-cve-2026-58042---medium

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

https://nodejs.org/en/blog/vulnerability/july-2026-security-releases#dnsresolveany-can-abort-on-dns-responses-with-many-a-records-cve-2026-58042---medium

OS impact

Debian Affected 5 releases

Version	Status	Fixed in
trixie	Affected	—
sid	Affected	—
forky	Affected	—
bullseye	Affected	—
bookworm	Affected	—

References

CWEs

CWE-400

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

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