---
id: CVE-2026-121020
title: >-
  User and Role Enumeration by Low-Privileged Users in Axxon One Security
  Configuration API
summary: >-
  Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) in the
  security configuration API in AxxonSoft Axxon One before 3.2.0 on Windows and
  Linux allows a remote authenticated user with limited privileges to enumerate
  all u…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-200
vendor: AxxonSoft
product: Axxon One
affected:
  - axxon_one < 3.2.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-03T20:14:54.276444Z'
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T20:15:11.966Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121020'
references:
  - url: >-
      https://www.axxonsoft.com/legal/axxonsoft-vulnerability-disclosure-policy/security-advisories#CVE-2026-121020
tags:
  - cve.org
epss: 0.00215
epssPercentile: 0.11926
ingestedAt: '2026-11-05T20:33:06.435Z'
---

## Overview

Exposure of Sensitive Information to an Unauthorized Actor (CWE-200) in the security configuration API in AxxonSoft Axxon One before 3.2.0 on Windows and Linux allows a remote authenticated user with limited privileges to enumerate all user accounts and roles configured in the system via the user configuration request, which returned the complete lists of users and roles regardless of the caller's permissions.

## Affected

- `axxon_one < 3.2.0`

## Remediation

Upgrade Axxon One to version 3.2.0 or later, where the user configuration request returns only the data the requesting user is permitted to see.