CVE-2026-15943

A flaw was found in the Keycloak keycloak-services component, which handles the management of identity providers. The issue occurs when a delegated administrator updates an OIDC identity provider using a masked client secret sentinel value. Due to improper validation, Keycloak reuses the existing real secret even if security-sensitive fields like the token URL have been changed, allowing an attacker to redirect and capture the secret.

• CWE-1288

• https://access.redhat.com/security/cve/CVE-2026-15943Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2501270Issue Tracking, Vendor Advisory

Published

Jul 17, 2026

Last Modified

Aug 9, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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