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  5. CVE-2025-11538

CVE-2025-11538: Keycloak allows Binding to an Unrestricted IP Address

November 13, 2025 (updated November 14, 2025)

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.

References

  • access.redhat.com/errata/RHSA-2025:21370
  • access.redhat.com/errata/RHSA-2025:21371
  • access.redhat.com/security/cve/CVE-2025-11538
  • bugzilla.redhat.com/show_bug.cgi?id=2402622
  • github.com/advisories/GHSA-7m9g-pmxf-m9m8
  • github.com/keycloak/keycloak
  • nvd.nist.gov/vuln/detail/CVE-2025-11538

Code Behaviors & Features

Detect and mitigate CVE-2025-11538 with GitLab Dependency Scanning

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Affected versions

All versions up to 26.4.4

Solution

Unfortunately, there is no solution available yet.

Impact 6.8 MEDIUM

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-1327: Binding to an Unrestricted IP Address

Source file

maven/org.keycloak/keycloak-quarkus-server/CVE-2025-11538.yml

Spotted a mistake? Edit the file on GitLab.

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