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CVE-2026-85220

Denial-of-Service in the Thinkst Canary Redis service

CVSS 3.1 3.7 LOWCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-85220

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-85220

Published

Canary

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Thinkst Applied Research",
                    "product": "Canary",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "5.1.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.2.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.3.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.4.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.5.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.6.4",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.7.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.8.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.9.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.10.2",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "5.11.2",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON