CVSS 4.0
8.2 highCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:NCVE-2026-23745
High (8.2) in isaacs tar. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in tar 7.5.3.
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.
Severity
CVSS 3.1
6.1 mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- isaacs:tar
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-8qq5-rm4j-mr97 | npm | tar | <7.5.3 | 7.5.3 |
References
- https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e
- https://github.com/isaacs/node-tar/security/advisories/GHSA-8qq5-rm4j-mr97
- https://access.redhat.com/errata/RHSA-2026:18480
- https://access.redhat.com/errata/RHSA-2026:18868
- https://access.redhat.com/errata/RHSA-2026:19712