Red Hat Keycloak Debug Mode access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$5k-$25k0.00

Summaryinfo

A vulnerability has been found in Red Hat Keycloak and classified as critical. This impacts an unknown function of the component Debug Mode. The manipulation leads to access control. This vulnerability is listed as CVE-2025-11538. The attack must be carried out from within the local network. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Red Hat Keycloak (the affected version unknown). This issue affects an unknown part of the component Debug Mode. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2025-11538. The exploitation is known to be easy. The attack needs to be done within the local network. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/03/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 297528 (Keycloak < 26.4.4 Debug Mode JDWP Port Exposure (CVE-2025-11538)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (297528), EUVD (EUVD-2025-175330) and CERT Bund (WID-SEC-2025-2606). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source Keycloak

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297528
Nessus Name: Keycloak < 26.4.4 Debug Mode JDWP Port Exposure (CVE-2025-11538)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/13/2025 Advisory disclosed
11/13/2025 +0 days VulDB entry created
02/03/2026 +82 days VulDB entry last update

Sourcesinfo

Vendor: redhat.com

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2025-11538 (🔒)
GCVE (CVE): GCVE-0-2025-11538
GCVE (VulDB): GCVE-100-332363
EUVD: 🔒
CERT Bund: WID-SEC-2025-2606 - Keycloak: Mehrere Schwachstellen

Entryinfo

Created: 11/13/2025 16:37
Updated: 02/03/2026 01:11
Changes: 11/13/2025 16:37 (49), 11/14/2025 01:20 (1), 11/14/2025 03:10 (12), 11/14/2025 12:53 (7), 02/03/2026 01:11 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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