Casdoor versions 2.362.0 and earlier map SAML assertions to user sessions without replay protection. The ParseSamlResponse() function in object/saml_sp.go calls sp.RetrieveAssertionInfo() and immediately maps the result to a user session. There is no assertion ID cache, OneTimeUse condition enforcement, or replay detection anywhere in the SAML SP code path. As a result, an attacker can replay a previously captured SAML assertion to obtain an authenticated session for the assertion’s subject, including administrator accounts, without needing the user’s password or MFA credentials.
References
| Link | Resource |
|---|---|
| https://kb.cert.org/vuls/id/780781 |
Configurations
No configuration.
History
28 May 2026, 18:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-294 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
28 May 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-28 17:16
Updated : 2026-05-28 18:16
NVD link : CVE-2026-9095
Mitre link : CVE-2026-9095
CVE.ORG link : CVE-2026-9095
JSON object : View
Products Affected
No product.
CWE
CWE-294
Authentication Bypass by Capture-replay
