Private Key Exposure in Casdoor Product by Vendor
CVE-2026-90942
9.3CRITICAL
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-90942?
The Casdoor product until version 4.4.0 has a critical flaw that allows organization administrators to access the built-in certificate's private key through the /api/get-certs and /api/get-cert endpoints. This exposure can be exploited by attackers to create forged JSON Web Tokens (JWT) for any user, including those with global administrative privileges, potentially leading to unauthorized access and data breaches.
Affected Version(s)
casdoor 0 <= 4.4.0
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.
References
CVSS V4
Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
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
George Chen