CVE-2026-9093 Details
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.
A vulnerability exists in Casdoor versions 2.362.0 and earlier, where the SAML service provider implementation fails to validate the AudienceRestriction element in SAML assertions. The issue arises because the buildSp function does not set the AudienceURI on the gosaml2 SAMLServiceProvider struct, nor does it check for audience mismatch warnings. This oversight allows assertions intended for other service providers to be accepted by Casdoor.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 28, 2026CISA-ADP
Assessed Jun 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://kb.cert.org/vuls/id/780781 | [email protected] | AdvisoryBundleRemedy |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Casdoor | <= 2.362.0 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 2, 2026 | CVE Modified | CISA-ADP |
| May 28, 2026 | New CVE Received | [email protected] |