CVE-2026-2092
March 18, 2026
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.
Affected Packages
https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=26.5.0 <26.5.5Fix Suggestion:
Update to version 26.5.5https://github.com/keycloak/keycloak.git (GITHUB):
Affected version(s) >=1.0-alpha-1 <26.4.10Fix Suggestion:
Update to version 26.4.10org.keycloak:keycloak-saml-core (JAVA):
Affected version(s) >=26.5.0 <26.5.5Fix Suggestion:
Update to version 26.5.5org.keycloak:keycloak-services (JAVA):
Affected version(s) >=26.5.0 <26.5.5Fix Suggestion:
Update to version 26.5.5Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
LOW
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Validation of Specified Type of Input
EPSS
Base Score:
0.07
