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Jupyter Server: Path Traversal via incorrect startswith() root directory check allows access to sibling directories

🗓️ 05 May 2026 16:49:10Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 2 Views

Jupyter Server up to 2.17.0 permits access to sibling directories sharing a prefix with the root, enabling unauthorized access.

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06 Jun 2026 00:23Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.8
CVSS 47.6
EPSS0.00051
SSVC
2