What is GHSA-3w4h-g9f5-j84p?

GHSA-3w4h-g9f5-j84p is a security advisory published by GitHub Security Advisories with Critical severity. Casdoor does not validate the AudienceRestriction element in SAML assertions

Which CVE IDs does GHSA-3w4h-g9f5-j84p cover?

GHSA-3w4h-g9f5-j84p covers the following CVE IDs: CVE-2026-9093. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-3w4h-g9f5-j84p?

GHSA-3w4h-g9f5-j84p has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

Which products are affected by GHSA-3w4h-g9f5-j84p?

GHSA-3w4h-g9f5-j84p affects 1 product, including: go/github.com/casdoor/casdoor:\u003c= 1.1000.1-0.20260321120606-239e8bd69487.

GHSA-3w4h-g9f5-j84pCriticalCVSS 9.8

Casdoor does not validate the AudienceRestriction element in SAML assertions

Vendor

GitHub Security Advisories

Published

May 28, 2026

Last Modified

July 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-9093 →

📋 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 products1

go/github.com/casdoor/casdoor:<= 1.1000.1-0.20260321120606-239e8bd69487

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-9093
https://kb.cert.org/vuls/id/780781
https://github.com/advisories/GHSA-3w4h-g9f5-j84p