CVE-2026-90942

Casdoor through 4.4.0 Private Key Exposure via Certificate Endpoints

Published Sep 14, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Casdoor
Casdoor casdoor
Vendors & Products Casdoor
Casdoor casdoor
Type Values Removed Values Added
Description 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.
Title Casdoor through 4.4.0 Private Key Exposure via Certificate Endpoints
First Time appeared Casbin
Casbin casdoor
Weaknesses CWE-863
CPEs cpe:2.3:a:casbin:casdoor:*:*:*:*:*:*:*:*
Vendors & Products Casbin
Casbin casdoor
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 24, 2026, 2:22 PM
Reserved
Sep 14, 2026, 11:34 AM
Status
Deferred
Published
Sep 14, 2026, 6:20 PM
Modified
Sep 23, 2026, 5:17 PM