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TI-2026-10234 Aliases CVE-2026-11859

HTML injection in the Canarytoken links email

Priority LOW 10CWE-74Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00258 17th percentileScored 2026-11-07
Fix Fixed Canarytokens (Thinkst Applied Research): sha-08c3f93d

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Thinkst Applied ResearchCanarytokenssha-c0f3cf142 to before sha-08c3f93dsha-08c3f93dPatch availableCNA
  • Canarytokens VendorThinkst Applied Research Affected sha-c0f3cf142 to before sha-08c3f93d Fixed in sha-08c3f93d Patch available CNA

Remediation

  • Fix · CNA Canarytokens (Thinkst Applied Research) Fixed in sha-08c3f93d

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-11859

References

  • TI-2026-13810 Denial-of-Service in OpenCanary's MongoDB module CVSS 4.0MEDIUM 6.9
  • TI-2026-58544 Denial-of-Service in the Thinkst Canary Redis service CVSS 3.1LOW 3.7
  • TI-2026-58543 Denial-of-Service in the OpenCanary Redis service CVSS 3.1LOW 3.7
  • TI-2026-10985 HTML injection in the Canarytoken Google Chat notification CVSS 4.0LOW 2.0
  • TI-2026-11158 Stored Cross-Site Scripting in Canarytokens.org CVSS 4.0LOW 1.1
  • TI-2026-09225 HTML injection in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens CVSS 4.0LOW 1.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences