TI-2026-58544 Aliases CVE-2026-85220 GHSA-x7vx-qh4q-fg6x

Denial-of-Service in the Thinkst Canary Redis service

LOW 18CWE-770Published 2026-09-21 · Updated 2026-09-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00406 35th percentileScored 2026-11-07

Fix Fixed Canary (Thinkst Applied Research): 5.1.2, 5.2.2, 5.3.2 +8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Thinkst Applied Research	Canary	—	5.1.2, 5.2.2, 5.3.2, 5.4.2, 5.5.2, 5.6.4, 5.7.2, 5.8.2, 5.9.2, 5.10.2, 5.11.2	Patch available	CNA

Canary VendorThinkst Applied Research Affected — Fixed in 5.1.2, 5.2.2, 5.3.2, 5.4.2, 5.5.2, 5.6.4, 5.7.2, 5.8.2, 5.9.2, 5.10.2, 5.11.2 Patch available CNA

Remediation

Fix · CNA Canary (Thinkst Applied Research) Fixed in 5.1.2, 5.2.2, 5.3.2, 5.4.2, 5.5.2, 5.6.4, 5.7.2, 5.8.2, 5.9.2, 5.10.2, 5.11.2

Timeline

2026-10-02 Threatist record created from CVE-2026-85220
2026-10-03 Alias added: GHSA-x7vx-qh4q-fg6x

References

Other 1

https://canary.tools/security-advisories/tc-2026-01.txt

TI-2026-13810 Denial-of-Service in OpenCanary's MongoDB module CVSS 4.0MEDIUM 6.9
TI-2026-58543 Denial-of-Service in the OpenCanary Redis service CVSS 3.1LOW 3.7
TI-2026-10985 HTML injection in the Canarytoken Google Chat notification CVSS 4.0LOW 2.0
TI-2026-10234 HTML injection in the Canarytoken links email CVSS 4.0LOW 2.0
TI-2026-11158 Stored Cross-Site Scripting in Canarytokens.org CVSS 4.0LOW 1.1
TI-2026-09225 HTML injection in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens CVSS 4.0LOW 1.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences