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 3.1
- 7.7
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L - EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-25)
- CWE
- CWE-1287
- Published
- Modified
- Record from
- the NVD, synced
Affected
- redhat:build_of_keycloak
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-794g-x443-36f7 | Maven | org.keycloak:keycloak-services | <=26.2.5 | no fix published |
| GHSA-794g-x443-36f7 | Maven | org.keycloak:keycloak-services | >=26.3.0 <=26.4.7 | no fix published |
| GHSA-794g-x443-36f7 | Maven | org.keycloak:keycloak-services | >=26.5.0 | no fix published |