CVE-2026-33929
4.3 · MEDIUMOverview
CVE-2026-33929 is a medium-severity vulnerability affecting apache pdfbox. It was published on April 14, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from apache. Update pdfbox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apache | pdfbox | >= 2.0.24, < 2.0.37 | Affected |
Frequently Asked Questions
What is CVE-2026-33929?
CVE-2026-33929 is a medium-severity vulnerability affecting apache pdfbox. It was published on April 14, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2026-33929?
This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-33929?
Check the references section for vendor advisories and patches from apache. Update pdfbox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-33929?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33929 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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