---
id: CVE-2026-79652
title: >-
  A flaw was found in the JWT Bearer authorization grant implementation within
  the keycloak-services component of Red Hat Build of Keycloak
summary: >-
  A flaw was found in the JWT Bearer authorization grant implementation within
  the keycloak-services component of Red Hat Build of Keycloak. This component
  handles various OAuth2 and OpenID Connect grant types used for issuing access
  token…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-862
vendor: Red Hat
product: keycloak-rhel9-container
affected:
  - keycloak-rhel9-container (all versions)
  - keycloak-rhel9-operator-bundle-container (all versions)
  - keycloak-rhel9-operator-container (all versions)
  - keycloak/rhbk-openshift-rhel9
  - keycloak-services
  - rhbk/keycloak-rhel9
  - keycloak-services
published: '2026-08-25'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:17:42.747'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79652'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:68277'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:68278'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-79652'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2523347'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-79652.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-79652'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79652'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.0021
epssPercentile: 0.11449
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-08-25T13:26:13.219160Z'
ingestedAt: '2026-09-16T15:58:38.768Z'
patched:
  - build_of_keycloak 26.6
  - build_of_keycloak 26.6.7
---

## Overview

A flaw was found in the JWT Bearer authorization grant implementation within the keycloak-services component of Red Hat Build of Keycloak. This component handles various OAuth2 and OpenID Connect grant types used for issuing access tokens. The issue occurs because the JWT Bearer grant fails to check if a client requires user consent before issuing a token. This allows an authenticated attacker with valid client credentials and a trusted identity provider assertion to bypass the consent requirement and obtain unauthorized access to a user account at a consent-gated client.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **RHSA-2026:68277** · Red Hat · fixed in: Red Hat build of Keycloak 26.6 · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:68277)
- **RHSA-2026:68278** · Red Hat · fixed in: Red Hat build of Keycloak 26.6.7 · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:68278)