Insufficient Compartmentalization Affecting keycloak package, versions <26.5.7-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.04% (14th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-KEYCLOAK-15955186
  • published9 Apr 2026
  • disclosed2 Apr 2026

Introduced: 2 Apr 2026

NewCVE-2026-4282  (opens in a new tab)
CWE-653  (opens in a new tab)

How to fix?

Upgrade Minimos:latest keycloak to version 26.5.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak package and not the keycloak package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.

CVSS Base Scores

version 3.1