CVE-2026-106071

Name	CVE-2026-106071
Description	A flaw in Node.js Permission Model filesystem enforcement can grant access to paths that do not match a wildcard `--allow-fs-read` or `--allow-fs-write` rule. When the requested path is shorter than the prefix of a wildcard grant, the radix tree lookup stops comparing early and treats the path as a match. For example, `--allow-fs-read=/etc/passwd.` also allows reading `/etc/passwd`. This requires the wildcard grant to sit directly under the root of the permission tree, for example when it is the only grant for that scope. This is a different root cause from CVE-2026-58043. This vulnerability affects Node.js 26.x*.
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)	bookworm	18.20.4+dfsg-1~deb12u2	vulnerable
	bookworm (security)	18.20.4+dfsg-1~deb12u3	vulnerable
	trixie	20.19.2+dfsg-1+deb13u2	vulnerable
	trixie (security)	20.19.2+dfsg-1+deb13u3	vulnerable
	forky, sid	24.22.2+dfsg+~cs24.19.2-1	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/november-2026-security-releases#permission-model-filesystem-over-grant-via-wildcard-radix-lookup-cve-2026-106071---low