CVE-2026-16443

7.4 HIGH

Published 2026-08-05 · Updated 2026-08-10

AI risk analysis

Summary: The flaw in Keycloak's SAML metadata import functionality allows unauthenticated attackers to forge SAML responses and gain unauthorized access by exploiting missing usage attributes for keys.
Exploitability: Exploitation requires knowledge of external identifiers but is relatively straightforward given the preconditions.
Blast radius: If exploited, this could lead to unauthorized access to user accounts in affected Keycloak deployments.
Prioritized remediation: Update to the latest version of Red Hat Build of Keycloak that addresses this vulnerability.

auth-bypasssamlkeycloakredhat

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

A flaw was found in the SAML metadata import functionality of the keycloak-services component, which is the core engine for identity brokering in Red Hat Build of Keycloak. When importing identity provider metadata that lacks specific usage attributes for keys, the system incorrectly disables signature validation for SAML responses even if a signing certificate is provided. This issue allows an unauthenticated attacker to forge a SAML response and gain unauthorized access to a user account by knowing their external identifier.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-347

Vendors

redhat

Products

build of keycloak

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.