Description
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.
Affected products
apache: zeppelin
References4
- lists.apache.org/thread/ps1f0symnyxzq8c2dc3244v051jcwp40 Mailing ListVendor Advisory
- github.com/apache/zeppelin/pull/5227 Issue TrackingPatch
- github.com/apache/zeppelin/pull/5248 Issue TrackingPatch
- www.openwall.com/lists/oss-security/2026/07/30/2 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS — exploit probability
- 1% percentile: 57 · as of 13 November 2026
- CWE
- CWE-22
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