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GHSA-j4vq-q93m-4683

Keycloak has debug default bind address

Source: GitHub Advisory Database (reviewed) Moderate CVE-2025-11538

Packages

EcosystemPackageAffectedFixed in
Maven org.keycloak:keycloak-quarkus-dist < 26.4.4 26.4.4

Details

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

A vulnerability exists in Keycloak's server distribution where enabling debug mode (`--debug`) insecurely defaults to binding the Java Debug Wire Protocol (JDWP) port to all network interfaces (`0.0.0.0`). This exposes the debug port to the local network, allowing an attacker on the same network segment to attach a remote debugger and achieve remote code execution within the Keycloak Java virtual machine. Red Hat evaluates this as a Moderate impact vulnerability due to the requirement of running debug mode and untrusted network. Also, for Red Hat Single Sign-On, this must as well be bound to 0.0.0.0 address, which is not recommended in production scenarios.

References

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