VDB
CVE-2026-9090
CVE-2026-9090
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Reported by certcc · Published May 28, 2026
Casdoor versions 2.362.0 and earlier contain a vulnerability that allows an attacker to bypass authentication by supplying an arbitrary signing certificate. The buildSpCertificateStore function extracts the X.509 certificate directly from the incoming SAMLResponse instead of using the trusted pre-configured Identity Provider certificate, allowing an attacker to forge assertions signed with an attacker-controlled key.
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Casdoor | Casdoor | 0 |
| Casdoor | Casdoor | 0, 0, 0 |
| github.com | casdoor/casdoor | 0 |
Timeline
- May 28, 2026 CVE Published
- May 29, 2026 EPSS Score
- May 30, 2026 EPSS Score
- May 31, 2026 EPSS Score
- May 31, 2026 Coalition ESS Score
- Jun 1, 2026 EPSS Score
- Jun 2, 2026 Security Advisory
- Jun 5, 2026 EPSS Score
- Jul 2, 2026 CVE Updated