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CVE-2026-90942

Casdoor through 4.4.0 Private Key Exposure via Certificate Endpoints

CVSS 4.0 9.3 CRITICALCVSS 3.1 9.6 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-90942

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-90942

Published

casdoor

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "casdoor",
                    "product": "casdoor",
                    "packageURL": "pkg:github/casdoor/casdoor",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "0",
                            "lessThanOrEqual": "4.4.0",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "repo": "https://github.com/casdoor/casdoor"
                }

Original source record · Cite this exact observation · Complete original publisher JSON