Keycloak-services: keycloak-services: oidc idp update reuses masked client secret after token url change
Historical advisory recorded 6 Nov 2026 12:03:43 UTC. Read the latest advisory.
cve-program · CVE-2026-15943
PublishedA 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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cve-program · CVE-2026-15943
PublishedKeycloak-services: keycloak-services: oidc idp update reuses masked client secret after token url change
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.
- Source published
- 17 Jul 2026 11:49:49 UTC
- Source modified
- 6 Nov 2026 10:25:07 UTC
- Saved here
- 6 Nov 2026 12:03:43 UTC
- Source terms
- CVE Program Terms of Use
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Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 5.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N