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3.7
CVE-2026-85220: Thinkst Canary can be stopped by remote attacker
CVE-2026-85220 · published 28 days ago
Summary
If the Redis feature on a Thinkst Canary honeypot is turned on, anyone on the network can cause it to stop working, making it unavailable for monitoring. The issue is fixed in the latest software releases and Docker images, so apply the update or switch off the Redis service until you can patch. If you cannot update right away, turn off Redis as a temporary workaround.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| thinkst applied research | canary | All versions |
Original advisory text
Denial-of-Service in the Thinkst Canary Redis service
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.
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.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-770Allocation of Resources Without Limits
Timeline
Published21 Sep 2026
Updated19 Oct 2026
First seen21 Sep 2026
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