Missing Authentication Vulnerability in Coolify by Coollabsio
CVE-2026-100746

6.9MEDIUM

Key Information:

Vendor

Coollabsio

Status
Coolify
Vendor
CVE Published:
27 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-100746?

A flaw has been identified in the GitHub App Setup Handler of Coolify versions up to 4.1.0, where the function Github::redirect fails to enforce proper authentication for the 'state' argument. This weakness enables unauthorized parties to exploit the system remotely, potentially leading to security breaches. Users are advised to upgrade to version 4.1.1, which includes necessary patches to address this issue. The specific patch is identified as fc89e357feed5180ed1ab5eb9cb330578f025539.

Affected Version(s)

Coolify 4.0

Coolify 4.1.0

Coolify 4.1.1

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-2026-100746 - Proof of Concept

References

https://vuldb.com/vuln/410617
vdb-entrytechnical-description
https://vuldb.com/vuln/410617/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-100746
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

lakshay12311 (VulDB User)
.