CVE-2026-90942
Casdoor through 4.4.0 Private Key Exposure via Certificate Endpoints
CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | casdoor |
| Product | casdoor |
| Published | Sep 14, 2026 |
| Last Updated | Sep 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for casdoor casdoor
Be the first to know when new critical vulnerabilities affecting casdoor casdoor are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
casdoor / casdoor
0 ≤ 4.4.0
References
github.com: 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 github.com: https://github.com/casdoor/casdoor/blob/v4.4.0/controllers/cert.go github.com: https://github.com/casdoor/casdoor/blob/v4.4.0/object/cert.go github.com: https://github.com/casdoor/casdoor vulncheck.com: https://www.vulncheck.com/advisories/casdoor-through-4.4.0-private-key-exposure-via-certificate-endpoints
Credits
🔍 George Chen