CVE-2026-86254 wger Incomplete Authorization Fix Cross-Tenant Account Deletion
Attackers with gym management permissions can delete or deactivate other users due to flawed authorization checks in user management views.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86254?
CVE-2026-86254 is a medium-severity missing authorization vulnerability in wger-project wger, published on 6 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-86254?
How do I fix CVE-2026-86254?
No fix has been published for CVE-2026-86254 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86254 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86254 exists.
Sources
Also known as GHSA-qc8h-h7c3-v2gh.