Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy path-specific group policies (Red Hat Red Hat Build of Keycloak)

CVE-2026-19608
MEDIUM 5.3

At a glance

Source
NVD
EPSS
EPSS 0.27 % · percentile 20 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Awaiting Analysis

Description

A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.

Weaknesses (CWE)

  • CWE-285 — Improper Authorization

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:Nredhat
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:NNVD · secalert@redhat.com (Secondary)

European references

Affected products

ProductVersions
Red Hat · Red Hat Build of Keycloak
Red Hat · Red Hat Build of Keycloak
Red Hat · Red Hat Single Sign-On 7

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD