CVE-2026-4628 — A flaw was found in Keycloak. An improper Access Control vulnerability in…
🚨 CVE-2026-4628 A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid…
What This Means For You
- New vulnerability disclosed — verify if your stack is exposed.
- Phishing or social engineering activity — brief your users and SOC team.
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-4628 | Auth Bypass | Keycloak, User-Managed Access (UMA) resource_set endpoint, improper Access Control |
Source & Attribution
| Source Platform | Telegram |
| Channel | CVE Notify |
| Channel ID | 1129491012 |
| Message ID | 157563 |
| Published | April 01, 2026 at 17:56 UTC |
| Original Link | https://access.redhat.com/security/cve/CVE-2026-4628 |
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