Vulnerability in Thinkst Applied Research Canarytokens

CVE-2026-11859

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.

Published · last modified .

EPSS exploit prediction

EPSS: 0.003 (15.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-11859: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

References