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Vulnerability record · CVE-2026-9093 · published 28 May 2026

CVE-2026-9093: In Casdoor versions 2.362.0 and earlier, the SAML service provider implementation does not validate the Audien…

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.

9.8 CVSS 3.1 Critical EPSS 0.48% · top 60.9% Deferred
9.8CVSS 3.1 base score
0.48%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://kb.cert.org/vuls/id/780781

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Source: NIST National Vulnerability Database (record CVE-2026-9093), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.