CVE-2026-9093
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductGithub.com/casdoor/casdoor
PublishedMay 28, 2026
First seenMay 28, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/casdoor/casdoorGo | v ≤ 1.1000.1-0.20260321120606-239e8bd69487, No range specified | — |
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