CVE-2026-27625 Details
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.
A path traversal vulnerability allowing arbitrary file write has been identified in Stirling-PDF versions prior to 2.5.2. The issue arises in the '/api/v1/convert/markdown/pdf' endpoint, where user-supplied ZIP entries are extracted without proper path validation. This flaw enables authenticated users to write files outside the designated temporary directory, using the privileges of the Stirling-PDF process user, 'stirlingpdfuser'. The vulnerability can overwrite existing writable files, compromising data integrity, with potential consequences depending on the specific paths involved.
Users are advised to update to Stirling-PDF version 2.5.2 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Stirling-Tools/Stirling-PDF/releases/tag/v2.5.2 | [email protected] | PatchProduct |
| https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-wccq-mg6x-2w22 | [email protected] | ExploitVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
| CWE-23 | Relative Path Traversal | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| stirling stirling pdf | < 2.5.2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 24, 2026 | Initial Analysis | [email protected] |
| Mar 20, 2026 | New CVE Received | [email protected] |