CVE-2026-15943
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Redhat Build Of Keycloak
PublishedJul 17, 2026
First seenJul 17, 2026
Weakness typeCWE-1288CWE-1288
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat build_of_keycloak | No range specified | — |
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