Medium 6.8Published Nov 13, 2025

CVE-2025-11538Keycloak-server: debug default bind address

Updated under an hour ago (Oct 28, 2026, 10:50 PM ET)

Does this affect you?

It affects keycloak and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for keycloak

Exploited in the last 30 days

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.

CVSS: 6.8 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-1327
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Deferred
Record last updated: Dec 19, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Keycloak keycloak keycloak:keycloak (from the name)	before 26.4.4	CNA record
Red Hat Red Hat build of Keycloak 26.4 redhat:build_keycloak	from 26.4.4-1 not affected	CNA record

References

References

https://access.redhat.com/errata/RHSA-2025:21370	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2025:21371	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2025-11538	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2402622	issue-tracking, x-refsource-redhat
https://github.com/keycloak/keycloak/commit/9e98f2bf961f68853cea6fbec58b512ed8be7ca9
https://github.com/keycloak/keycloak/pull/43574

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.