Riskcovery

CVE-2026-16089

Keycloak-services: keycloak-services: authorization codes can be retargeted to another client session

State
Published
Severity
5.4 Medium
Published
Jul 17, 2026
Updated
Sep 16, 2026
Reserved
Jul 17, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.4 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:Nredhat

Weaknesses

  • CWE-472 External Control of Assumed-Immutable Web Parameter
  • CWE-384 Session Fixation

Affected Products

ProductVersions
Red Hat build of Keycloak 26.6Red Hat
  • 26.6.7-3 and laterNot affected
Red Hat build of Keycloak 26.6Red Hat
  • 26.6-20 and laterNot affected
Red Hat build of Keycloak 26.6Red Hat
  • 26.6-20 and laterNot affected
Red Hat build of Keycloak 26.6.7Red Hat
    Red Hat build of Keycloak 26.6.7Red Hat
      Red Hat build of Keycloak 26.6.7Red Hat
        Red Hat Data Grid 8Red Hat
          Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
            Red Hat Single Sign-On 7Red Hat

              References

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