CVE-2026-12888: Thinkst Applied Research Canarytokens

Low severity, CVSS 2.0. EPSS: 0.4% chance of exploitation in the next 30 days.

An HTML injection vulnerability exists in the Google Chat webhook notification  sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation in Google Chat. An attacker can insert limited HTML content including links. This issue affects Canarytokens: from Docker tag sha-4aef1db90 before sha-8ab4dccd, from Git commit 4aef1db90 before 8ab4dccd.

Affected products

• Thinkst Applied Research Canarytokens

Published 2026-06-22. Last modified 2026-06-23.