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GHSA-xh32-c9wx-phrp

Keycloak: Information disclosure of disabled user attributes via administrative endpoint

Source: GitHub Advisory Database (reviewed) Low CVE-2026-3911

Packages

EcosystemPackageAffectedFixed in
Maven org.keycloak:keycloak-services <= 26.5.5 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

A flaw was found in Keycloak. An authenticated user with the view-users role could exploit a vulnerability in the UserResource component. By accessing a specific administrative endpoint, this user could improperly retrieve user attributes that were configured to be hidden. This unauthorized information disclosure could expose sensitive user data.

References

External links from the advisory. They lead to third-party sites.