Apache PDFBox Examples: Path Traversal in PDFBox ExtractEmbeddedFiles Example Code
概要
Apache PDFBox Examples: Path Traversal in PDFBox ExtractEmbeddedFiles Example Code
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
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.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Debian DEBIAN-CVE-2026-33929 libpdfbox-java
- Ubuntu UBUNTU-CVE-2026-33929 libpdfbox-java
参照URL
- advisory github.com
- advisory lists.apache.org
- advisory nvd.nist.gov
- patch github.com
- web repo.maven.apache.org
- web lists.apache.org