CVE-2026-11859

HTML injection in the Canarytoken links email

State: Published
Severity: 2.0 Low
Published: Jun 10, 2026
Updated: Jun 10, 2026
Reserved: Jun 10, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	2.0 Low	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	ThinkstAppliedResearch

Weaknesses

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Affected Products

Product	Versions
CanarytokensThinkst Applied Research	sha-c0f3cf142 to before sha-08c3f93dAffected c0f3cf142 to before 08c3f93dAffected

References

https://github.com/thinkst/canarytokens/security/advisories/GHSA-55jf-cqr9-r7p4

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