PT-2026-60770 · Red Hat · Red Hat Build Of Keycloak+3

CVE-2026-16089 · Published 2026-07-17 · Updated 2026-07-17

NVD

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.

Fix

Related Identifiers

CVE-2026-16089

Affected Products

Red Hat Build Of Keycloak

Red Hat Data Grid 8

Red Hat Jboss Enterprise Application Platform Expansion Pack

Red Hat Single Sign-On 7

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-16089 · Security Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2501724 · Note
• https://access.redhat.com/security/cve/CVE-2026-16089 · Note