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                            CERT-Renater

                Note d'Information No. 2026/VULN282
_____________________________________________________________________

DATE                : 10/03/2026

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running Apache PDFBox versions 2.0.24,
                      3.0.0 up to and including 2.0.36, 3.0.7.

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https://lists.apache.org/thread/44qjmwnoltx3ommhmtsj80t5jd9wf96s
_____________________________________________________________________

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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