CVE-2026-24842

Aliases:GHSA-34x7-hfp2-rc4v
Advisory lineage Upstream: 0 Downstream: 6
Analyzed
Published: 28 Jan 2026, 00:20
Last modified:20 Jul 2026, 12:04

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.2 HIGH
v3.1 (cve.org)
EPSS Score
0.54% LOW
1% probability +0.52%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

28 Jan 2026, 00:20
Published
Vulnerability first disclosed
20 Jul 2026, 12:04
Last Modified
Vulnerability information updated

Description

node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.

CVSS Metrics

  • v3.1•HIGH•Score: 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

EPSS Trends

Current EPSS score: 0.54%• Percentile: 42%

Techniques & Countermeasures

  • CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

  • CWE-59•Improper Link Resolution Before File Access ('Link Following')

    The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Systems

  • isaacs•node-tar

    < 7.5.7

  • isaacs•tar

    < 7.5.7

  • Npm•tar

    < 7.5.7

References (13)