Changeflow GovPing Data Privacy & Cybersecurity Keycloak Information Disclosure Vulnerability (...
Priority review Guidance Added Final

Keycloak Information Disclosure Vulnerability (CVSS 3.7)

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Summary

CERT-Bund issued a security advisory (WID-SEC-2026-0970) reporting an information disclosure vulnerability in Keycloak, an open-source identity and access management platform. The vulnerability carries a CVSS Base Score of 3.7 (low severity) and allows remote anonymous attackers to potentially expose sensitive information. Affected systems include Keycloak deployments running on Linux and UNIX operating systems.

What changed

CERT-Bund published a security advisory identifying an information disclosure vulnerability in Keycloak with CVSS Base Score 3.7. The vulnerability allows remote, anonymous attackers to exploit the system and disclose information. Keycloak is an open-source identity and access management solution providing Single Sign-On capabilities for modern applications and services.

Organizations running Keycloak on Linux or UNIX systems should evaluate their exposure and implement available mitigations or patches. While the low CVSS score indicates limited severity, the remote and anonymous attack vector warrants attention from IT security teams managing identity management infrastructure.

What to do next

  1. Apply available security patches for Keycloak
  2. Review Keycloak configurations for exposure
  3. Monitor for indicators of exploitation attempts

Archived snapshot

Apr 8, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

[WID-SEC-2026-0970] Keycloak: Schwachstelle ermöglicht Offenlegung von Informationen CVSS Base Score 3.7 (niedrig) CVSS Temporal Score 3.4 (niedrig) Remoteangriff ja Datum 06.04.2026 Stand 07.04.2026 Mitigation nein

Betroffene Systeme

Betriebssystem

  • Linux
  • UNIX

Produktbeschreibung

Keycloak ermöglicht Single Sign-On mit Identity and Access Management für moderne Anwendungen und Dienste.

Produkte

06.04.2026
- Open Source Keycloak

Angriff

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Keycloak ausnutzen, um Informationen offenzulegen. CVE Informationen Versionshistorie Feedback zum Advisory geben

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Last updated

Classification

Agency
CERT-Bund
Published
April 6th, 2026
Instrument
Guidance
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
WID-SEC-2026-0970

Who this affects

Applies to
Technology companies Government agencies
Industry sector
5112 Software & Technology
Activity scope
Vulnerability patching Identity management security IT infrastructure protection
Geographic scope
Germany DE

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Compliance frameworks
NIST CSF
Topics
Data Privacy Software & Technology

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