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CVE-2026-29786

node-tar: Hardlink Path Traversal via Drive-Relative Linkpath

Published: Mar 7, 2026Updated: Mar 11, 2026 Sources: CVE List NVD GHSA BDUCWE-22
NVD MITRE
6.3CVSSMEDIUM
EPSS Score
0.3%
Top 80.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:CC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-22CWE-59

Affected Products

tarisaacs
Library
OSS Libraries / npm
node-tarisaacs
Library
OSS Libraries / npm
tarnpmOSS Libraries
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
node-tarNode.js FoundationOSS Libraries
isaacsindividual-devOSS Librariesaka isaacs node packages, isaacs tar
npmpackage-ecosystemOSS Libraries
ооо «ред софт»commercialRUOperating Systemsaka red soft
node.js foundationoss-projectUSOSS Librariesaka nodejs foundation, node foundation

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9f
github.com
https://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-29786
nvd.nist.gov
and 5 more references View all →

Timeline

Published
Mar 7, 2026
Last Updated
Mar 11, 2026

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