CVE-2026-85219 Denial-of-Service in the OpenCanary Redis service
An unauthenticated remote attacker can cause unconstrained memory usage in the OpenCanary Redis service, leading to denial of service.
- 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-2026-85219?
CVE-2026-85219 is a low-severity denial of service vulnerability in Thinkst Applied Research OpenCanary, published on 21 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Denial-of-Service in Redis module in Thinkst Canary's OpenCanary 0.9.9 allows an unauthenticated remote attacker cause unconstrained memory usage.
Weakness: CWE-770
Which versions are affected by CVE-2026-85219?
How do I fix CVE-2026-85219?
No fix has been published for CVE-2026-85219 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-2026-85219 being exploited?
There is no known exploitation of CVE-2026-85219 in the wild and no public exploit code.
Sources
Also known as GHSA-77jg-5rmj-77jx.