CVE-2026-9098

🗓️ 28 May 2026 16:31:42Reported by certccType

cve🔗 web.nvd.nist.gov👁 151 Views🌐 WEB

Casdoor SAML callback accepts any SAMLResponse without matching AuthnRequest, enabling replay and unauthorized access.

Reporter	Title	Published	Views	Family All 18
attackerkb	CVE-2026-9098	28 May 202616:31	–	attackerkb
CNNVD	Casdoor security vulnerability	28 May 202600:00	–	cnnvd
Cvelist	CVE-2026-9098 CVE-2026-9098	28 May 202616:31	–	cvelist
EUVD	EUVD-2026-32952	28 May 202616:31	–	euvd
Github Security Blog	Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest	28 May 202618:30	–	github
Mend	CVE-2026-9098	28 May 202616:31	–	mend
NVD	CVE-2026-9098	28 May 202617:16	–	nvd
osv_ghsa	GHSA-MFVP-7P3V-X9MH Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest	28 May 202618:30	–	osv_ghsa
osv_go	GO-2026-5898 Casdoor SAML callback handler accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest in github.com/casdoor/casdoor	7 Jul 202615:26	–	osv_go
osv_opensuse	OPENSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb	30 Jul 202609:09	–	osv_opensuse

Vulners

Node

casbin casdoorRange≤2.362.0

[
  {
    "vendor": "Casdoor",
    "product": "Casdoor",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "2.362.0",
        "versionType": "custom"
      }
    ]
  }
]

Source	Link
kb	www.kb.cert.org/vuls/id/780781

Parameter	Position	Path	Description	CWE
SAMLResponse	request body	/api/acs	The SAML callback handler accepts unsolicited or replayed SAML responses without verifying them against a previously issued AuthnRequest.	CWE-306: Missing Authentication for Critical Function

17 Jun 2026 11:04Current

8.2High risk

Vulners AI Score8.2

CVSS 3.19.1

EPSS0.0023

SSVC