Vulnerability · Published May 28, 2026 · Assigned by certcc
CVE-2026-9093CVE-2026-9093
Critical 9.8
In plain English
A critical-severity security flaw in Casdoor from Casdoor. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 69.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the AudienceRestriction element in SAML assertions. The buildSp function in object/saml_sp.go never sets AudienceURI on the gosaml2 SAMLServiceProvider struct and never inspects WarningInfo.NotInAudience. This allows assertions issued for other service providers to be accepted by Casdoor.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/casdoor/casdoor | no fix listed | GHSA-3w4h-g9f5-j84p |
| Go | github.com/casdoor/casdoor | no fix listed | GO-2026-5894 |