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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90942.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "4.4.0"
},
{
"fixed": "4.4.0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}