CVE-2026-15943

Keycloak-services: keycloak-services: oidc idp update reuses masked client secret after token url change

CVSS 3.1 5.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-15943

Published

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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Affected versions, risk and source history

Exploitation and risk

Source status

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Risk history

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Advisory history

3 saved versions

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6 Nov 2026 19:02:40 UTC