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CVE PROGRAM SOURCE RECORD4.8 Medium

CVE-2026-35571

Emissary has Stored XSS via Navigation Template Link Injection

Description

Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, Mustache navigation templates interpolated configuration-controlled link values directly into href attributes without URL scheme validation. An administrator who could modify the navItems configuration could inject javascript: URIs, enabling stored cross-site scripting (XSS) against other authenticated users viewing the Emissary web interface. This vulnerability is fixed in 8.39.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

NationalSecurityAgency emissary

  • < 8.39.0affected

References