CVE-2026-9098 (GCVE-0-2026-9098)

Vulnerability from cvelistv5 – Published: 2026-05-28 16:31 – Updated: 2026-06-02 16:43
VLAI
Title
CVE-2026-9098
Summary
In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 15:50 UTC
CWE
Assigner
certcc CNA under the mitre root
CNA scorecard E 42/100 over 157 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Casdoor Casdoor Affected: 0 , ≤ 2.362.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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