---
id: CVE-2026-71854
title: >-
  OpenAEV is an open source platform allowing organizations to plan, schedule
  and conduct cyber adversary simulation campaign and tests
summary: >-
  OpenAEV is an open source platform allowing organizations to plan, schedule
  and conduct cyber adversary simulation campaign and tests. Prior to version
  2.260622.0, on a default installation, the `/api/player/**` lessons endpoints
  can be …
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-306
  - CWE-639
  - CWE-862
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T21:17:39.177'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71854'
references:
  - url: >-
      https://github.com/OpenAEV-Platform/openaev/security/advisories/GHSA-47wr-wp4h-8v3f
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-14T21:57:04.830Z'
vendor: OpenAEV-Platform
product: openaev
affected:
  - openaev < 2.260622.0
---

## Overview

OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Prior to version 2.260622.0, on a default installation, the `/api/player/**` lessons endpoints can be called without authentication, and they trust a client-supplied `userId` query parameter without verifying that the caller is that user or a member of the exercise. An unauthenticated client that knows an exercise UUID can read lessons-learned questions and answers (including each answer's author identity) and create or overwrite answers attributed to an arbitrary user. Version 2.260622.0 contains a patch.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.