UBUNTU-CVE-2026-23745
Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 16 Jan 2026, 22:16
Last modified:20 Jul 2026, 16:19
Vulnerability Summary
Overall Risk (default)
medium
33/100 CVSS Score
8.2 HIGH
4.0 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
16 Jan 2026, 22:16
Published
Vulnerability first disclosed
20 Jul 2026, 16:19
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v4.0•HIGH•Score: 8.2CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
- v3.1•HIGH•Score: 8.2CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Affected Systems
- ubuntu•node-tar
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