CVE-2026-10729 PUBLISHED

HTML injection in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens

Assigner: ThinkstAppliedResearch
Reserved: 03.06.2026 Published: 03.06.2026 Updated: 03.06.2026

An HTML injection vulnerability in the notification email for "Slow Redirect" and "Cloned Website" Canarytokens exists in 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-c42435e before sha-bfda4df, from Git commit c42435e before bfda4df.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:H/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
CVSS Score: 1.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	Low
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	Active

CVSS 4.0

Product Status

Vendor	Thinkst Applied Research
Product	Canarytokens
Versions	Default: unaffected affected from sha-c42435e to sha-bfda4df (excl.) affected from c42435e to bfda4df (excl.)

Solutions

Pull the latest Docker image:

$ docker pull thinkst/canarytokens:latest

Credits

Gaurav Popalghat finder

References

https://github.com/thinkst/canarytokens/security/advisories/GHSA-hmjv-pj8j-8fg7

Problem Types

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

Impacts

CAPEC-113 Interface Manipulation
CAPEC-63 Cross-Site Scripting (XSS)