CVE-2025-13466

Name	CVE-2025-13466
Description	body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic. This issue is addressed in version 2.2.1.
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
node-body-parser (PTS)	bullseye	1.19.0-2	vulnerable
	bookworm	1.20.1+~1.19.2-1	vulnerable
	trixie	1.20.3+~1.19.5-3	vulnerable
	forky, sid	2.2.0+~1.19.6-3	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
node-body-parser	source	(unstable)	(unfixed)

Notes

[trixie] - node-body-parser <no-dsa> (Minor issue)
[bookworm] - node-body-parser <no-dsa> (Minor issue)
https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4
Fixed by: https://github.com/expressjs/body-parser/commit/b204886a6744b0b6d297cd0e849d75de836f3b63 (v2.2.1)