CVE-2025-11538

mediumpriority · track · 0EPSS 0.004 · 37 %ileDEEUJPUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.43% (37th) EPSS

CVSS 6.8 · medium

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.16.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · secalert@redhat.com USexploitability 1.6 · impact 5.2

v3.16.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.16.2mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1327USCWE-1327US

affected products (8)

Products and version ranges known to be affected.

Open Source Keycloak Red Hat Build <26.4all versionscert_bundDE
Open Source Keycloak Red Hat Build <26.4.4all versionscert_bundDE
Open Source Keycloak≤ Red Hat Build <26.4cert_bundDE
Open Source Keycloak≤ Red Hat Build <26.4.4cert_bundDE
KeyCloak0 → 26.4.4enisa_euvdEU
Red Hat build of Keycloak 26.4< 26.4-3enisa_euvdEU
Red Hat build of Keycloak 26.4< 26.4.4-1enisa_euvdEU
Maven org.keycloak:keycloak-quarkus-dist< 26.4.4osvUSpkg:maven/org.keycloak/keycloak-quarkus-dist

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2606Keycloak: Mehrere SchwachstellenDeutsch2025-11-13csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um beliebigen Programmcode auszuführen, und um Sicherheitsvorkehrungen zu umgehen.
GHSA-j4vq-q93m-4683Keycloak has debug default bind address2025-12-02ghsa · osvUS
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.
JVNDB-2026-026852JVN iPedia advisory JVNDB-2026-0268522026-08-05vendor · jvndbJP

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv jvndb NVD CVE.org MITRE

published 2025-11-13modified 2026-10-18

references (16)

External citations — patches, advisories, analysis.

scry

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