Critical severity9.8NVD Advisory· Published May 28, 2026· Updated Jun 17, 2026
CVE-2026-9093
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/casdoor/casdoorGo | <= 1.1000.1-0.20260321120606-239e8bd69487 | — |
Affected products
3- osv-coordsRange: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-3w4h-g9f5-j84pghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-9093ghsaADVISORY
- kb.cert.org/vuls/id/780781nvdWEB
News mentions
1- Casdoor: Nine SAML & SSO Flaws Disclosed, Including Critical Auth Bypass (CVE-2026-9090)Vypr Intelligence · May 28, 2026