Exposure of Data Element to Wrong Session Affecting github.com/casdoor/casdoor/controllers package, versions >=0.0.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMCASDOORCASDOORCONTROLLERS-17817953
- published5 Jul 2026
- disclosed28 May 2026
- creditUnknown
Introduced: 28 May 2026
CVE-2026-9098 (opens in a new tab)How to fix?
There is no fixed version for github.com/casdoor/casdoor/controllers.
Overview
Affected versions of this package are vulnerable to Exposure of Data Element to Wrong Session in the SAML callback handler process. An attacker can gain persistent unauthorized access by sending unsolicited or replayed SAML responses to the /api/acs endpoint, as the handler does not verify that the response corresponds to a previously issued AuthnRequest. This allows an attacker controlling a registered upstream IdP to issue or replay SAML responses, resulting in unauthorized session issuance. This is only exploitable if an attacker has control over a registered upstream Identity Provider or can capture and replay legitimate SAML responses.