CVE-2026-9093 (GCVE-0-2026-9093)

Vulnerability from cvelistv5 – Published: 2026-05-28 16:21 – Updated: 2026-05-28 16:21
VLAI
Title
CVE-2026-9093
Summary
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.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Casdoor Casdoor Affected: 0 , ≤ 2.362.0 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Casdoor",
          "vendor": "Casdoor",
          "versions": [
            {
              "lessThanOrEqual": "2.362.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T16:21:50.192Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://kb.cert.org/vuls/id/780781"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-9093",
      "x_generator": {
        "engine": "VINCE 3.0.41",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-9093"
      }
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  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-9093",
    "datePublished": "2026-05-28T16:21:50.192Z",
    "dateReserved": "2026-05-20T15:04:21.545Z",
    "dateUpdated": "2026-05-28T16:21:50.192Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-9093",
      "date": "2026-05-29",
      "epss": "0.00017",
      "percentile": "0.04505"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-9093\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-05-28T17:16:34.210\",\"lastModified\":\"2026-05-28T18:00:22.543\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://kb.cert.org/vuls/id/780781\",\"source\":\"cret@cert.org\"}]}}"
  }
}


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