CVE-2026-15943

MediumCVSS 5.5/10Last modified Nov 6, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

Weakness enumeration

Affected software

VendorProductVersions
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6—
Red HatRed Hat build of Keycloak 26.6.8—
Red HatRed Hat build of Keycloak 26.6.8—
Red HatRed Hat build of Keycloak 26.6.8—
Red HatRed Hat Data Grid 8—
Red HatRed Hat JBoss Enterprise Application Platform Expansion Pack—
Red HatRed Hat Single Sign-On 7—

References

Timeline

Published
Jul 17, 2026
Last modified
Nov 6, 2026
NVD status
Modified

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