CVE-2026-35571

{"id": "CVE-2026-35571", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.7}]}, "published": "2026-04-07T16:16:29.920", "references": [{"url": "https://github.com/NationalSecurityAgency/emissary/pull/1293", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-cpm7-cfpx-3hvp", "tags": ["Exploit", "Third Party Advisory", "Mitigation"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-04-27T14:37:28.970", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nsa:emissary:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EC86D6D-EB58-4DE4-B88C-C562B33281A0", "versionEndIncluding": "8.38.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}