CVE-2026-12888CWE-74
HTML injection in the Canarytoken Google Chat notification
Low · published June 22, 2026
What it is
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.
The record
Technical detail
- CVSS v4.0
- 2.0 · LOW
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:P/AU:N/RE:L/U:Green
- EPSS
- 0.00444 · 37.5th percentile
- Weakness
- CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
- Published
- 2026-06-22T13:05Z
EPSS history
Timeline