7.1

CVE-2026-26960

Exploit

node-tar has Arbitrary File Read/Write via Hardlink Target Escape Through Symlink Chain in Extraction

node-tar is a full-featured Tar for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink inside the extraction directory that points to a file outside the extraction root, enabling arbitrary file read and write as the extracting user. Severity is high because the primitive bypasses path protections and turns archive extraction into a direct filesystem access primitive. This issue has been fixed in version 7.5.8.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Isaacs ≫ Tar SwPlatformnode.js Version < 7.5.8
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.202
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
security-advisories@github.com 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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.

https://github.com/isaacs/node-tar/security/advisories/GHSA-83g3-92jg-28cx
Vendor Advisory
Exploit
https://github.com/isaacs/node-tar/commit/2cb1120bcefe28d7ecc719b41441ade59c52e384
Patch
https://github.com/isaacs/node-tar/commit/d18e4e1f846f4ddddc153b0f536a19c050e7499f
Patch