Directory Traversal Affecting py3-jupyterlab package, versions <4.6.1-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PY3JUPYTERLAB-17802607
  • published3 Jul 2026
  • disclosed16 Jan 2026

Introduced: 16 Jan 2026

CVE-2026-23745  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard py3-jupyterlab to version 4.6.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3-jupyterlab package and not the py3-jupyterlab package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

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 Base Scores

version 3.1