CVE-2026-2092 Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions
Attackers can bypass authentication in Keycloak SAML broker by injecting encrypted assertions when the response is unsigned, leading to unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-2092?
CVE-2026-2092 is a high-severity authentication bypass vulnerability in Redhat Build of Keycloak, published on 18 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-1287
Which versions are affected by CVE-2026-2092?
7 open source packages ship an affected version, including org.keycloak:keycloak-services and keycloak. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.keycloak:keycloak-services Maven | All versions to 26.2.5 | None |
org.keycloak:keycloak-services Maven | All versions to 26.2.5 | None |
org.keycloak:keycloak-services Maven | From 26.3.0 to 26.4.7 | None |
org.keycloak:keycloak-services Maven | From 26.3.0 to 26.4.7 | None |
org.keycloak:keycloak-services Maven | From 26.5.0 | 26.5.5 |
org.keycloak:keycloak-services Maven | From 26.5.0 | 26.5.5 |
1 more packages
keycloak Bitnami | From 26.2.0 | 26.2.14, 26.4.10 |
Products include Redhat Build of Keycloak.
How do I fix CVE-2026-2092?
Upgrade org.keycloak:keycloak-services to 26.5.5 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-2092 being exploited?
There is no known exploitation of CVE-2026-2092 in the wild and no public exploit code.
Other vulnerabilities in Redhat Build of Keycloak
- CVE-2026-15572 Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation
- CVE-2026-3047 Keycloak SAML Broken has Authentication Bypass by Primary Weakness
- CVE-2026-15573 Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher
- CVE-2026-16102 Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers
- CVE-2026-1609 Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users
Sources
Also known as BIT-keycloak-2026-2092, ECHO-8c0b-1f50-633c, GHSA-794g-x443-36f7, MINI-8868-4x3j-888g, MINI-9wvp-p7v5-hmx4.