CVE-2026-71854 — OpenAEV has unauthenticated access and missing object-level authorization on player lessons API

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
OpenAEV-Platform / openaev	affected < 2.260622.0

CWE

CWE-306, CWE-639, CWE-862

References

https://github.com/OpenAEV-Platform/openaev/security/advisories/GHSA-47wr-wp4h-8v3f

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.