CVE-2026-11414

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "modules": ["Vault Service (DownloadController)"], "platforms": ["Web"], "product": "Altium Enterprise Server", "vendor": "Altium", "versions": [{"lessThan": "8.1.1", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:altium:on-prem_enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "0EA274E8-BCF0-41F5-A4DD-3855F0776A78", "versionEndExcluding": "8.1.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A hard-coded cryptographic key is used by Altium Enterprise Server to sign file download URLs in the Vault service. Because the key is identical across all installations, an unauthenticated network attacker who can reach the server can forge valid download signatures and retrieve files from the Vault storage area without any authentication, session, or credentials.\n\n\nA separate path traversal vulnerability in the same download endpoint allows the configured storage root to be escaped, enabling reads of arbitrary files on the server filesystem. Combined, these issues allow an unauthenticated attacker to obtain sensitive server configuration and key material, which can lead to full server compromise. The vulnerability can be chained with CVE-2026-9152 to enumerate and bulk-download stored content. Altium 365 cloud deployments are not impacted in practice, as file storage uses object storage rather than the local filesystem."}, {"lang": "es", "value": "Una clave criptogr\u00e1fica codificada de forma r\u00edgida es utilizada por Altium Enterprise Server para firmar URL de descarga de archivos en el servicio Vault. Debido a que la clave es id\u00e9ntica en todas las instalaciones, un atacante de red no autenticado que puede alcanzar el servidor puede falsificar firmas de descarga v\u00e1lidas y recuperar archivos del \u00e1rea de almacenamiento de Vault sin ninguna autenticaci\u00f3n, sesi\u00f3n o credenciales.\n\nUna vulnerabilidad de salto de ruta separada en el mismo punto final de descarga permite escapar de la ra\u00edz de almacenamiento configurada, permitiendo lecturas de archivos arbitrarios en el sistema de archivos del servidor. Combinados, estos problemas permiten a un atacante no autenticado obtener configuraci\u00f3n sensible del servidor y material de clave, lo que puede llevar a un compromiso total del servidor. La vulnerabilidad puede encadenarse con CVE-2026-9152 para enumerar y descargar masivamente contenido almacenado. Las implementaciones en la nube de Altium 365 no se ven afectadas en la pr\u00e1ctica, ya que el almacenamiento de archivos utiliza almacenamiento de objetos en lugar del sistema de archivos local."}], "id": "CVE-2026-11414", "lastModified": "2026-10-26T11:10:00.157", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-11414", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-09T14:20:55.464260Z", "version": "2.0.3"}}]}, "published": "2026-06-05T20:17:29.033", "references": [{"source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "tags": ["Vendor Advisory"], "url": "https://www.altium.com/platform/security-compliance/security-advisories"}], "sourceIdentifier": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-798"}], "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79", "type": "Secondary"}]}

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