---
id: CVE-2026-86254
title: >-
  wger versions through master contain an incomplete authorization bypass in
  wger/core/views/user.py where three views retain the original gym-scope check
  using raw integer comparison instead of the is_same_gym() helper, allowing gym
  staff…
summary: >-
  wger versions through master contain an incomplete authorization bypass in
  wger/core/views/user.py where three views retain the original gym-scope check
  using raw integer comparison instead of the is_same_gym() helper, allowing gym
  staff…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-862
vendor: wger-project
product: wger
affected:
  - wger <= master
published: '2026-09-06'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:59:42.500'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86254'
references:
  - url: >-
      https://github.com/wger-project/wger/security/advisories/GHSA-mw8f-w6p8-xrf4
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wger-incomplete-authorization-fix-cross-tenant-account-deletion
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/wger-project/wger/security/advisories/GHSA-mw8f-w6p8-xrf4
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.0037
epssPercentile: 0.28142
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T13:32:54.776180Z'
ingestedAt: '2026-09-07T04:04:50.673Z'
---

## Overview

wger versions through master contain an incomplete authorization bypass in wger/core/views/user.py where three views retain the original gym-scope check using raw integer comparison instead of the is_same_gym() helper, allowing gym staff with gym=None to delete, deactivate, or activate any other user with gym=None. Attackers with gym.manage_gym permission and gym=None affiliation can permanently delete user accounts, lock users out via deactivation, or undo defensive deactivations by exploiting the None != None comparison edge case.

## Remediation

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