CVE-2026-2092
High
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.
SeverityHigh
CVSS7.7
Exploit probability—
Product
Redhat Build Of Keycloak
PublishedMar 18, 2026
First seenMar 18, 2026
Weakness typeCWE-1287CWE-1287
How to fix
Update
- redhat build_of_keycloak26.2.14, 26.4.10 or later
- org.keycloak:keycloak-services26.5.5 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2026:3925
- access.redhat.com/errata/RHSA-2026:3926
- access.redhat.com/errata/RHSA-2026:3947
- access.redhat.com/errata/RHSA-2026:3948
- access.redhat.com/errata/RHSA-2026:76128
- access.redhat.com/errata/RHSA-2026:76129
- access.redhat.com/errata/RHSA-2026:76130
- access.redhat.com/errata/RHSA-2026:76132
- access.redhat.com/errata/RHSA-2026:76134
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat build_of_keycloak | 26.2 ≤ v < 26.2.14, 26.4 ≤ v < 26.4.10 | 26.2.14, 26.4.10 |
| org.keycloak:keycloak-servicesMaven | v ≤ 26.2.5, 26.3.0 ≤ v ≤ 26.4.7, 26.5.0 ≤ v < 26.5.5 | 26.5.5 |
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