DEBIAN-CVE-2026-5422
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-5422
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5422.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-5422
- Upstream
- Published
- 2026-06-02T10:16:25Z
- Modified
- 2026-09-14T17:03:19Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / jupyter-server
Package
- Name
- jupyter-server
- Purl
- pkg:deb/debian/jupyter-server?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / jupyter-server
Package
- Name
- jupyter-server
- Purl
- pkg:deb/debian/jupyter-server?arch=source&distro=trixie
Debian:14 / jupyter-server
Package
- Name
- jupyter-server
- Purl
- pkg:deb/debian/jupyter-server?arch=source&distro=forky