Vulnerability · Published Sep 21, 2026 · Assigned by ThinkstAppliedResearch
CVE-2026-85220Denial-of-Service in the Thinkst Canary Redis service
Low 3.7
In plain English
A low-severity resource allocation without limits in Canary from Thinkst Applied Research. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
A vulnerability in the Thinkst Canary honeypot Redis service allows an unauthenticated remote attacker to execute a Denial-of-Service attack against the honeypot. The vulnerability is accessible when the Redis service is enabled only. The Canary is NOT affected if the Redis service is disabled. Thinkst has addressed this issue on all supported platforms. New update files to address this issue are available on all platforms except Docker. For Docker customers, a new Docker image has been published which includes the patch. Customers with automatic updates enabled already have updates in distribution. If automatic updates are disabled, customers are advised to update their Canaries. Workarounds are available for customers unable to update at this time.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Thinkst Applied Research | Canary | see references |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L