CVE-2026-113606
Received Received - Intake

Authorization Bypass in Stirling-PDF via Folder Processing

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: VulnCheck

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.

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Meta Information

Published
2026-10-20
Last Modified
2026-10-20
Generated
2026-10-20
AI Q&A
2026-10-20
EPSS Evaluated
N/A
NVD
CVE-2026-113606
EUVD
EUVD-2026-105084

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Stirling-Tools Stirling-PDF 3.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

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Executive Summary

Stirling-PDF 3.0.0 through 3.2.0 has an authorization bypass flaw. Authenticated users can access other users' stored files by creating a processing folder that points to the server's storage directory. They can target paths like storage/<victimUserId>, list files, and manipulate them through processing pipelines.

Impact Analysis

If you use Stirling-PDF 3.0.0 to 3.2.0, an attacker with valid credentials could read, modify, or delete your files. This includes sensitive documents stored by other users on the same server. The impact depends on the data stored and could lead to data breaches or loss.

Compliance Impact

This vulnerability could violate GDPR by exposing personal data without authorization. For HIPAA, it risks unauthorized access to protected health information. Compliance failures may result in legal penalties, fines, or reputational damage depending on the data involved.

Mitigation Strategies

Upgrade Stirling-PDF to a version beyond 3.2.0 to address the authorization bypass vulnerability. Ensure proper access controls are enforced on the storage directory to prevent unauthorized access to user files.

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