CVE-2026-11859: Thinkst Applied Research Canarytokens

Low severity, CVSS 2.0. EPSS: 0.3% chance of exploitation in the next 30 days.

An HTML injection vulnerability in the "fetch links" email sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting (XSS) in emails clients that render HTML emails. This issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d.

Affected products

• Thinkst Applied Research Canarytokens

Published 2026-06-10. Last modified 2026-06-17.