CVE-2026-113606
Stirling-PDF 3.0.0 through 3.2.0 Authorization Bypass via Processing Folders
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 20, 2026
- Updated
- Oct 23, 2026
- Reserved
- Oct 20, 2026
Description
Stirling-PDF 3.0.0 through 3.2.0 contains an authorization bypass vulnerability that allows authenticated users to access other users' stored files by pointing a processing folder at the server storage directory. Attackers can create a folder via POST /api/v1/processing-folders targeting storage/<victimUserId>, list files, and run pipelines to read, modify, or destroy victims' files.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
Stirling-PDFStirling-Tools |
|
References
- https://github.com/abraxas/stirling-storage-folder-idorexploittechnical-description
- https://abraxaslabs.tech/research/stirling-storage-folder-idortechnical-description
- https://abraxaslabs.tech/research/stirling-pdf-3.2.0-leftoverstechnical-description
- https://github.com/Stirling-Tools/Stirling-PDF/blob/v3.2.0/app/proprietary/src/main/java/stirling/software/proprietary/policy/config/FolderAccessGuard.javatechnical-description
- https://github.com/Stirling-Tools/Stirling-PDF/blob/v3.2.0/app/proprietary/src/main/java/stirling/software/proprietary/policy/controller/ProcessingFolderController.javatechnical-description
- VulnCheck Advisory: Stirling-PDF 3.0.0 through 3.2.0 Authorization Bypass via Processing Foldersthird-party-advisory
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