CVE-2026-16089

medium

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2501724

https://access.redhat.com/security/cve/CVE-2026-16089

Details

Source: Mitre, NVD

Published: 2026-07-17

Updated: 2026-07-17

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.4

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

Severity: Medium

EPSS

EPSS: 0.00154