Vulnerability Description
Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries without path checks. Any authenticated user can write files outside the intended temporary working directory, leading to arbitrary file write with the privileges of the Stirling-PDF process user (stirlingpdfuser). This can overwrite writable files and compromise data integrity, with further impact depending on writable paths. The issue was fixed in version 2.5.2.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Stirling | Stirling Pdf | < 2.5.2 |
Related Weaknesses (CWE)
References
- https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.5.2PatchProduct
- https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-wccq-mg6ExploitVendor Advisory
FAQ
What is CVE-2026-27625?
CVE-2026-27625 is a vulnerability with a CVSS score of 8.1 (HIGH). Stirling-PDF is a locally hosted web application that performs various operations on PDF files. In versions prior to 2.5.2, the /api/v1/convert/markdown/pdf endpoint extracts user-supplied ZIP entries...
How severe is CVE-2026-27625?
CVE-2026-27625 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-27625?
Check the references section above for vendor advisories and patch information. Affected products include: Stirling Stirling Pdf.