VULNRABLE / Vulnerability / CVE-2026-11800

CVE-2026-11800

HIGH LOW org.keycloak:keycloak-services GHSA

Exploit verdict: No active-exploit signal

CVSS Score

Severity

HIGH

EPSS

Source

GHSA

Summary

Keycloak has authentication bypass via jwt algorithm confusion

What this means

CVE-2026-11800 is a high-severity vulnerability affecting org.keycloak:keycloak-services, rated CVSS 8. The EPSS model estimates a 0% probability of exploitation in the next 30 days. Published November 3, 2026.

View full advisory at GHSA →