CVE-2026-109164 Missing authorization in tduck-survey-form
Authenticated users can delete other users' form submissions by manipulating submission IDs, leading to unauthorized data destruction.
- 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-2026-109164?
CVE-2026-109164 is a high-severity missing authorization vulnerability in TDuckCloud tduck-survey-form, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
TDuck survey form through 6.0 contains an insecure direct object reference vulnerability that allows authenticated users to delete other users' form submissions by supplying arbitrary submission ids. Attackers can place their own formKey in the path and iterate sequential submission ids in the request body to permanently delete submissions platform-wide.
Weakness: CWE-639
Which versions are affected by CVE-2026-109164?
How do I fix CVE-2026-109164?
No fix has been published for CVE-2026-109164 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-2026-109164 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-109164 exists.
Sources
Also known as GHSA-cjgh-vqwv-7g46.