CVE-2026-16551 Denial-of-Service in OpenCanary's MongoDB module
An attacker can cause a denial of service in OpenCanary's MongoDB module through excessive allocation, affecting system availability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16551?
CVE-2026-16551 is a medium-severity denial of service vulnerability in Thinkst Applied Research OpenCanary, published on 22 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Denial-of-Service in Thinkst Applied Research OpenCanary (MongoDB module) allows Excessive Allocation.
This issue affects OpenCanary 0.9.8 only.
Which versions are affected by CVE-2026-16551?
How do I fix CVE-2026-16551?
No fix has been published for CVE-2026-16551 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-16551 being exploited?
There is no known exploitation of CVE-2026-16551 in the wild and no public exploit code.
Sources
Also known as GHSA-vg37-pc42-q265.