CVE-2026-94217 — Keycloak-services: keycloak-services: uma scope merge across resource owners via resource name collision
A flaw was found in the User-Managed Access (UMA) implementation of Keycloak. The issue occurs in the authorization token endpoint when processing permission tickets. If two dif…
Published: 2026-09-21 · CVSS: 3.5 · CVSS 3.1
A flaw was found in the User-Managed Access (UMA) implementation of Keycloak. The issue occurs in the authorization token endpoint when processing permission tickets. If two different users own resources with the same name, the system incorrectly merges the permissions from both resources when one user requests an authorization token. This allows an attacker to gain access scopes on a victim's resource that were never intended to be shared.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7