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Message-ID: <8642eca7-9ea4-e688-6a2f-afff338fcbfa@apache.org>
Date: Tue, 10 Mar 2026 09:20:37 +0000
From: Tilman Hausherr <tilman@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-23907: Apache PDFBox Examples: Path Traversal in PDFBox
ExtractEmbeddedFiles Example Code
Severity: moderate
Affected versions:
- Apache PDFBox Examples (org.apache.pdfbox:pdfbox-examples) 2.0.24 through 2.0.36
- Apache PDFBox Examples (org.apache.pdfbox:pdfbox-examples) 3.0.0 through 3.0.7
Description:
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.
The ExtractEmbeddedFiles example contains a path traversal vulnerability (CWE-22) because
the filename that is obtained from
PDComplexFileSpecification.getFilename() is appended to the extraction path.
Users who have copied this example into their production code should
review it to ensure that the extraction path is acceptable. The example
has been changed accordingly, now the initial path and the extraction
paths are converted into canonical paths and it is verified that
extraction path contains the initial path. The documentation has also
been adjusted.
Credit:
Joakim Bülow (Neo4j Security Team) (finder)
References:
https://github.com/JoakimBulow/
https://pdfbox.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-23907
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