Authorization Bypass Vulnerability in Stirling-PDF by Abraxas
CVE-2026-113606

7.1HIGH

Key Information:

Vendor

Stirling-tools

Status
Stirling-PDF
Vendor
CVE Published:
20 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-113606?

Stirling-PDF versions 3.0.0 to 3.2.0 are vulnerable to an authorization bypass that allows authenticated users to access and manipulate other users' files. By targeting the server's storage directory through a crafted request to the processing folder API, attackers can list files belonging to victims, as well as execute pipelines that may lead to unauthorized reading, modification, or deletion of sensitive data. This significant security flaw poses serious risks for data confidentiality and user privacy.

Affected Version(s)

Stirling-PDF 3.0.0 <= 3.2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-113606 - Proof of Concept

References

https://github.com/abraxas/stirling-storage-folder-idor
exploittechnical-description
https://abraxaslabs.tech/research/stirling-storage-folder...
technical-description
https://abraxaslabs.tech/research/stirling-pdf-3.2.0-left...
technical-description

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abraxas Labs
.