CVE-2026-11859

HTML injection in the Canarytoken links email

Published Jun 10, 2026 CVSS 4.0 · 2 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Pull the latest Docker image: $ docker pull thinkst/canarytokens:latest

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Thinkst Applied Research
Thinkst Applied Research canarytokens
Vendors & Products Thinkst Applied Research
Thinkst Applied Research canarytokens
Type Values Removed Values Added
Description 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.
Title HTML injection in the Canarytoken links email
Weaknesses CWE-74
References
Metrics cvssV4_0

{'score': 2, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ThinkstAppliedResearch
Published
Updated
Jun 10, 2026, 2:38 PM
Reserved
Jun 10, 2026, 10:35 AM
Status
Awaiting Analysis
Published
Jun 10, 2026, 12:16 PM
Modified
Oct 26, 2026, 11:10 AM