{"id":"CVE-2026-35571","aliases":["GHSA-cpm7-cfpx-3hvp"],"url":"https://o3.security/vulnerability/CVE-2026-35571","summary":"Emissary has Stored XSS via Navigation Template Link Injection","details":"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.","published":"2026-04-07T15:26:30.391Z","modified":"2026-08-12T03:51:27.709374680Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"gov.nsa.emissary:emissary","fixedVersion":"8.39.0"}],"fix":{"url":"https://github.com/NationalSecurityAgency/emissary/pull/1293","label":"NationalSecurityAgency/emissary#1293"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35571.json"},{"type":"ADVISORY","url":"https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-cpm7-cfpx-3hvp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35571"},{"type":"FIX","url":"https://github.com/NationalSecurityAgency/emissary/pull/1293"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.709374680Z"}}