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Unrated severityNVD Advisory· Published Jun 22, 2026· Updated Jun 22, 2026

HTML injection in the Canarytoken Google Chat notification

CVE-2026-12888

Description

An HTML injection vulnerability exists in the Google Chat webhook notification  sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation in Google Chat. An attacker can insert limited HTML content including links.

This issue affects Canarytokens: from Docker tag sha-4aef1db90 before sha-8ab4dccd, from Git commit 4aef1db90 before 8ab4dccd.

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Affected products

1

Patches

Vulnerability mechanics

No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.

References

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