CVE-2024-21891

Name	CVE-2024-21891
Description	Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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 (security), bullseye	12.22.12~dfsg-1~deb11u4	fixed
	bookworm	18.19.0+dfsg-6~deb12u2	fixed
	bookworm (security)	18.19.0+dfsg-6~deb12u1	fixed
	trixie	20.15.0+dfsg-1	fixed
	sid	20.15.1+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nodejs	source	experimental	(unfixed)
nodejs	source	(unstable)	(not affected)

Notes

- nodejs <not-affected> (Only affects 20.x and later)
https://nodejs.org/en/blog/vulnerability/february-2024-security-releases/#multiple-permission-model-bypasses-due-to-improper-path-traversal-sequence-sanitization-cve-2024-21891---medium