Bug 2458164 (CVE-2026-33929) - CVE-2026-33929 Apache PDFBox: Apache PDFBox: Arbitrary file write via path traversal in ExtractEmbeddedFiles example
Summary: CVE-2026-33929 Apache PDFBox: Apache PDFBox: Arbitrary file write via path tr...
Keywords:
Status: NEW
Alias: CVE-2026-33929
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-14 09:01 UTC by OSIDB Bzimport
Modified: 2026-04-15 13:43 UTC (History)
32 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-14 09:01:35 UTC 
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Apache PDFBox Examples.

This issue affects the 
ExtractEmbeddedFiles example in Apache PDFBox: from 2.0.24 through 2.0.36, from 3.0.0 through 3.0.7.


Users are recommended to update to version 2.0.37 or 3.0.8 once 
available. Until then, they should apply the fix provided in GitHub PR 
427.

The ExtractEmbeddedFiles example contained a path traversal vulnerability (CWE-22) mentioned in CVE-2026-23907. However the change in the releases 2.0.36 and 3.0.7 is flawed because it doesn't consider the file path separator. Because of that, a user having writing rights on /home/ABC could be victim to a malicious PDF resulting in a write attempt to any path starting with /home/ABC, e.g. "/home/ABCDEF".

Users who have copied this example into their production code should apply the mentioned change. The example 
has been changed accordingly and is available in the project repository.
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