CVE-2026-12888

LOW

Thinkst Applied Research Canarytokens - HTML Injection in the Canarytoken Google Chat Notification

Title source: rule

Description

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.

References (1)

Core 1

Core References

https://github.com/thinkst/canarytokens/security/advisories/GHSA-vcfc-7466-8q65

Scores

CVSS v4 2.0

EPSS 0.0044

EPSS Percentile 36.5%

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:L/U:Green

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-74

Status published

Products (2)

Thinkst Applied Research/Canarytokens 4aef1db90 - 8ab4dccd

Thinkst Applied Research/Canarytokens sha-4aef1db90 - sha-8ab4dccd

Published Jun 22, 2026

Tracked Since Jun 22, 2026