Open Redirect Affecting org.keycloak:keycloak-services package, versions [,26.6.2)
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-JAVA-ORGKEYCLOAK-16873881
- published24 May 2026
- disclosed19 May 2026
- creditUnknown
Introduced: 19 May 2026
CVE-2026-37979 (opens in a new tab)How to fix?
Upgrade org.keycloak:keycloak-services to version 26.6.2 or higher.
Overview
org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services.
Affected versions of this package are vulnerable to Open Redirect via the TokenEndpoint introspection flow in the OIDC protocol handlers. An attacker can introspect tokens intended for another client by sending them to the token introspection endpoint from an authenticated client that is not listed in the token’s aud claim, exposing token metadata and claims for tokens outside that client’s intended audience.
Note: While the fix was back-ported to version 26.4.12, this version has not been published to Maven Central