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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.5
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
- EPSS probability
- 0.34%
- CWE
- CWE-1288
- Published
- 2026-07-17
- Last modified
- 2026-08-31
Weakness type
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