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Vulnerability · Published Jun 22, 2026 · Assigned by ThinkstAppliedResearch

CVE-2026-12888HTML injection in the Canarytoken Google Chat notification

Low 2.0

In plain English

A low-severity injection in Canarytokens from Thinkst Applied Research. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 4.0)2.0Low
Exploit odds (30 days)0.4%top 61.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Thinkst Applied Research Canarytokens sha-4aef1db90 – before sha-8ab4dccd4aef1db90 – before 8ab4dccd

Weakness: CWE-74 · 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

References