CVE-2026-23745

Name	CVE-2026-23745
Description	node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.
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-tar (PTS)	bullseye (security), bullseye	6.0.5+ds1+~cs11.3.9-1+deb11u2	vulnerable
	bookworm	6.1.13+~cs7.0.5-1	vulnerable
	trixie	6.2.1+~cs7.0.8-1	vulnerable
	forky, sid	6.2.1+ds1+~cs6.1.13-5	vulnerable

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

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

Notes

https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97
Fixed by: https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e (v7.5.3)