Medium · CVSS 5.3CVE-2026-121020

User and Role Enumeration by Low-Privileged Users in Axxon One Security Configuration APICVE-2026-121020

Answer in brief

CVE-2026-121020 records a Medium severity (CVSS 5.3) vulnerability in User and Role Enumeration by Low-Privileged Users in Axxon One Security Configuration API. The current sources do not mark it as known exploited. The current feed maps AxxonSoft/Axxon One (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 3, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Nov 3, 2026Material review Nov 3, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.3
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps AxxonSoft/Axxon One (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
AxxonSoft/Axxon Onegeneric	>=0 <3.2.0	3.2.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for AxxonSoft/Axxon One.
Review the reported fix. Source-reported solution: 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.

Evidence timeline and material changes

Published upstream
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Nov 3, 2026

Sources and claim methodology

Source referenceaxxonsoft.com

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.