Apache Zeppelin Path Traversal in FileSystemNotebookRepo (v0.9-0.12)
CVE-2026-44615 Published on July 31, 2026
Path traversal in NotebookRepo note and folder path composition
Path traversal vulnerability in Apache Zeppelin. When FileSystemNotebookRepo is configured, an authenticated attacker with permission to rename a note, or access to folder operations, could supply traversal segments in note or folder paths. Zeppelin composed these values into filesystem paths using the server's filesystem or Hadoop identity without ensuring that the result remained under the configured notebook directory. This could allow notebook files or directories to be moved, written, or deleted outside the notebook root. This issue affects Apache Zeppelin versions 0.9.0 through 0.12.0. Users are recommended to upgrade to version 0.12.1, which fixes this issue.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-44615 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-44615
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Affected Versions
Apache Software Foundation Apache Zeppelin:- Version 0.9.0 and below 0.12.1 is affected.