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CVE-2026-5422

8.1 Élevée

Publiée le 02/06/2026 à 12:16 · Modifiée le 22/07/2026 à 21:10 · Analysée par le NVD · Source : security@huntr.dev

Description

A path traversal vulnerability exists in jupyter-server version 2.17.0 due to an incorrect root directory boundary check in the _get_os_path() function within jupyter_server/services/contents/fileio.py. The check uses startswith(root) without appending a trailing path separator, allowing sibling directories with names starting with the same prefix as root_dir to bypass the check. Additionally, the to_os_path() function in utils.py does not strip ".." from path parts, enabling traversal sequences to bypass the vulnerable check. This vulnerability can lead to unauthorized read/write access to files in sibling directories, potentially exposing sensitive data in shared hosting environments.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 8.1 Élevée nvd@nist.gov (NVD) CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.0 6.8 Moyenne security@huntr.dev CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Faiblesses (CWE)

Références

Ailleurs