CVE-2026-29786
node-tar: Hardlink Path Traversal via Drive-Relative Linkpath
HIGH 8.2EPSS 0.4%
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.
- Affected
- isaacs · node-tar
- CVSS v4.0 GITHUB
- 8.2 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 8.2 HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L - CVSS v3.1 NVD
- 6.3 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N - CVSS v3.1 CNA
- 8.6 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N - EPSS
- 0.40% chance of exploitation in the next 30 days, 33rd percentile
- Published
- 2026-03-07
- Updated
- 2026-08-21
Proof-of-concept exploits (3)
- advisories/GHSA-qffp-2rhf-9h96
- Jvr2022/CVE-2026-297861★ · 2026-03-05
- Rohitberiwala/NodeJS-Tar-Symlink-Exploit-CVE-2026-297861★ · 2026-03-10
Security advisories
- isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96
- isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9f