CVE-2026-41660 Admidio: Inverted 2FA Reset Authorization Check Lets Group Leaders Strip Admin TOTP
Group leaders can strip administrators' two-factor authentication due to an inverted authorization check, enabling account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41660?
CVE-2026-41660 is a high-severity missing authorization vulnerability in admidio, published on 7 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Admidio is an open-source user management solution. Prior to version 5.0.9, a logic error in Admidio's two-factor authentication reset inverts the authorization check. Non-admin users cannot remove their own TOTP configuration, but they can remove other users' TOTP, including administrators. A group leader with profile edit rights on an admin account can strip that admin's 2FA. This issue has been patched in version 5.0.9.
Weakness: CWE-863
Which versions are affected by CVE-2026-41660?
2 open source packages ship an affected version, including admidio/admidio.
| Package | Affected | Fixed in |
|---|---|---|
admidio/admidio Packagist | All versions | 5.0.9 |
admidio/admidio Packagist | All versions | 5.0.9 |
How do I fix CVE-2026-41660?
Upgrade admidio/admidio to 5.0.9 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-41660 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41660 exists.
Sources
Also known as GHSA-rh3w-4ccx-prf9.