CVE-2026-2092

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.3

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:3925
https://access.redhat.com/errata/RHSA-2026:3926
https://access.redhat.com/errata/RHSA-2026:3947
https://access.redhat.com/errata/RHSA-2026:3948
https://access.redhat.com/security/cve/CVE-2026-2092
https://bugzilla.redhat.com/show_bug.cgi?id=2437296

Configurations

No configuration.

History

18 Mar 2026, 14:52

Type	Values Removed	Values Added
Summary		(es) Se encontró una vulnerabilidad en Keycloak. El endpoint del broker de Security Assertion Markup Language (SAML) de Keycloak no valida correctamente las aserciones cifradas cuando la respuesta SAML general no está firmada. Un atacante con una aserción SAML firmada válida puede explotar esto al crear una respuesta SAML maliciosa. Esto permite al atacante inyectar una aserción cifrada para un principal arbitrario, lo que lleva a un acceso no autorizado y a una potencial revelación de información.

18 Mar 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-18 02:16

Updated : 2026-03-18 14:52

NVD link : CVE-2026-2092

Mitre link : CVE-2026-2092

CVE.ORG link : CVE-2026-2092

JSON object : View

Products Affected

No product.

CWE

CWE-1287

Improper Validation of Specified Type of Input

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