CVE-2026-16089

medium Red Hat
CVSS v3 Base Score
5.4
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N
EPSS Score
0.2%
Exploitation probability in 30 days
Top 95% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Confidentiality
High
Integrity
Low
Availability
None
Published: July 17, 2026 (51 days ago)
Last Modified: July 17, 2026
Vendor: Red Hat
Source: REDHAT

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.

Affected Products

Red Hat Build of KeycloakRed Hat Data Grid 8Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat Single Sign-On 7

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov