CVE-2025-55130

Name	CVE-2025-55130
Description	A flaw in Node.js’s Permissions model allows attackers to bypass `--allow-fs-read` and `--allow-fs-write` restrictions using crafted relative symlink paths. By chaining directories and symlinks, a script granted access only to the current directory can escape the allowed path and read sensitive files. This breaks the expected isolation guarantees and enables arbitrary file read/write, leading to potential system compromise. This vulnerability affects users of the permission model on Node.js v20, v22, v24, and v25.
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~deb11u7	vulnerable
	bookworm, bookworm (security)	18.20.4+dfsg-1~deb12u1	vulnerable
	trixie	20.19.2+dfsg-1	vulnerable
	forky, sid	22.22.0+dfsg+~cs22.19.6-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
nodejs	source	(unstable)	22.22.0+dfsg+~cs22.19.6-1

https://nodejs.org/en/blog/vulnerability/december-2025-security-releases#bypass-file-system-permissions-using-crafted-symlinks-cve-2025-55130---high