CVE-2024-3656 | Keycloak: unguarded admin rest api endpoints allows low privilege users to use administrative functionalities

A flaw was found in Keycloak. Certain endpoints in Keycloak's admin REST API allow low-privilege users to access administrative functionalities. This flaw allows users to perform actions reserved for administrators, potentially leading to data breaches or system compromise.

Published: 2024-10-09 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-3656 is rated High Risk (67.8/100): CVSS High severity, with high exploitation likelihood (EPSS 89.66%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-3656

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-28 89.11% 89.66% +0.55%
2 2026-02-15 89.49% 89.11% -0.38%
3 2026-01-23 — 89.49% —

Full EPSS history (41 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-3656

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 5.2 [email protected]

Weakness enumeration for CVE-2024-3656

GitHub Security Advisory for CVE-2024-3656

GHSA-2cww-fgmg-4jqc · Severity: high · Ecosystem: maven — Keycloak's admin API allows low privilege users to use administrative functions

OS Trackers for CVE-2024-3656

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2024-3656

Affected software / configurations for CVE-2024-3656

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-3656

cvelogic Threat Intelligence