CVE-2026-15943

Description

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.

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Produits concernés

• Red Hat Build of Keycloak
• Red Hat Data Grid 8
• Red Hat JBoss Enterprise Application Platform Expansion Pack
• Red Hat Single Sign-On 7
• Redhat build of keycloak

Scores CVSS

Faiblesses (CWE)

• CWE-1288

Références

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

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories