CVE-2026-90942

Casdoor through 4.4.0 fails to properly mask the instance-wide built-in certificate private key in /api/get-certs and /api/get-cert endpoints, allowing organization administrators to retrieve it. Attackers can use the exposed private key to forge JWT tokens for any user in any organization, including global administrators.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/casdoor/casdoor
https://github.com/casdoor/casdoor/blob/v4.4.0/controllers/cert.go
https://github.com/casdoor/casdoor/blob/v4.4.0/object/cert.go
https://github.com/geo-chen/oss/blob/main/casdoor.md#finding-3-organization-admin-can-read-the-global-built-in-jwt-signing-private-key-via-apiget-certs-and-apiget-cert-incomplete-fix-of-3003--enables-cross-organization-token-forgery
https://www.vulncheck.com/advisories/casdoor-through-4.4.0-private-key-exposure-via-certificate-endpoints

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-14 18:20

Updated : 2026-09-14 19:18

NVD link : CVE-2026-90942

Mitre link : CVE-2026-90942

CVE.ORG link : CVE-2026-90942

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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