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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Analyzed - secalert@redhat.com
- Published
- 2026-07-17
- Last modified
- 2026-08-31
- Weaknesses
- CWE-1288
Affected products
- Build Keycloak (Redhat)
- Build Of Keycloak (Redhat)
- Jboss Data Grid (Redhat)
- Jbosseapxp (Redhat)
- Red Hat Single Sign On (Redhat)
References
- https://access.redhat.com/security/cve/CVE-2026-15943
- https://bugzilla.redhat.com/show_bug.cgi?id=2501270
