https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-02T20:34:00.110830+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/brew-jupyterlab-cve-2026-5422 BREW-jupyterlab-CVE-2026-5422 — Jupyter Server vulnerable to Path Traversal via incorrect root directory boundary check in _get_os_path() 2026-10-02T20:34:00.113905+00:00

Affected: Homebrew: jupyterlab

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.

 https://cve.radiocsirt.org/vuln/cve-2026-5422 CVE-2026-5422 — Path Traversal in jupyter/jupyter 2026-10-02T20:34:00.114002+00:00

Affected: jupyter/jupyter

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.

 https://cve.radiocsirt.org/vuln/ghsa-gf7q-q4j7-hp7c Withdrawn: GHSA-gf7q-q4j7-hp7c — Duplicate Advisory: Jupyter Server vulnerable to Path Traversal via incorrect root directory boundary check in _get_os_… 2026-10-02T20:34:00.114074+00:00

Withdrawn by the publisher.

Affected: PyPI: jupyter-server

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-5789-5fc7-67v3. This link is maintained to preserve external references.

### Original 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.