Skip to main content
CVE-2026-23745VulnerabilityPublished Updated

node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and

Affects node-tarSource GCVE Database

0
Authoritative record:CVE-2026-23745· High 8.2

Not known to be exploited · CVSS 8.2 High · fixed in 7.5.3 : patch node-tar soon.

Data as of 27 Oct 2026, 06:42 UTC

CVSS 4.0 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 7.5.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.04 LTSnode-tarpkg:deb/ubuntu/node-tar?arch=source&distro=resoluteOther threatsAffected
  • 6.2.1+~cs7.0.8-1 – 6.2.1+ds1+~cs6.1.13-10
4 affected builds
Fixed in–
Ubuntu 25.10node-tarpkg:deb/ubuntu/node-tar?arch=source&distro=questingOther threatsAffected
  • =6.2.1+~cs7.0.8-1
Fixed in–
Ubuntu 24.04 LTSnode-tarpkg:deb/ubuntu/node-tar?arch=source&distro=nobleOther threatsAffected
  • =6.1.13+~cs7.0.5-1
  • =6.1.13+~cs7.0.5-3
Fixed in–
Ubuntu 22.04 LTSnode-tarpkg:deb/ubuntu/node-tar?arch=source&distro=jammyOther threatsAffected
  • =6.1.7+~cs11.3.10-1
  • =6.1.11+~cs11.3.10-1
  • =6.1.11+ds1+~cs6.0.6-1
Fixed in–
Ubuntu Pro 20.04 LTSnode-tarpkg:deb/ubuntu/node-tar?arch=source&distro=esm-apps/focalOther threatsAffected
  • =4.4.10+ds1-2
  • =4.4.10+ds1-2ubuntu1
  • =4.4.10+ds1-2ubuntu1+esm1
Fixed in–
Ubuntu 18.04 LTSnode-tarpkg:deb/ubuntu/node-tar?arch=source&distro=bionicOther threatsAffected
  • =2.2.1-1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

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.

References

Community reviews

Loading reviews…