CVE-2026-33929— Apache PDFBox Examples: Path Traversal in PDFBox ExtractEmbeddedFiles Example Code

Apache PDFBox Examples: Path Traversal in PDFBox ExtractEmbeddedFiles Example Code

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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对路径名的限制不恰当(路径遍历)

Apache PDFBox 安全漏洞

Apache PDFBox是美国阿帕奇（Apache）基金会的一款基于Java语言的开源工具库。该产品提供PDF文档创建和编辑等功能。 Apache PDFBox 2.0.24至2.0.36版本和3.0.0至3.0.7版本存在安全漏洞，该漏洞源于路径限制不当，可能导致路径遍历攻击。

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