CVE-2025-11538

Summary

A vulnerability exists in Keycloak's server distribution where enabling debug mode (–debug <port>) 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.

Affected Software

VendorProductVersion RangeStatus
Keycloakkeycloak0 < 26.4.4affected
Red HatRed Hat build of Keycloak 26.426.4.4-1 < *unaffected
Red HatRed Hat build of Keycloak 26.426.4-3 < *unaffected
Red HatRed Hat build of Keycloak 26.426.4-3 < *unaffected

Weaknesses

  • CWE-1327: Binding to an Unrestricted IP Address

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References