CVE-2026-26984

{"id": "CVE-2026-26984", "cveTags": [], "metrics": {"cvssMetricV30": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 8.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 2.3}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2026-02-25T22:16:24.173", "references": [{"url": "https://github.com/aces/Loris/releases/tag/v26.0.5", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/aces/Loris/releases/tag/v27.0.2", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/aces/Loris/security/advisories/GHSA-mpgc-c48m-6v2h", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-434"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to versions 26.0.5, 27.0.2, and 28.0.0, an authenticated user with sufficient privileges can exploit a path traversal vulnerability to upload a malicious file to an arbitrary location on the server. Once uploaded, the file can be used to achieve remote code execution (RCE). An attacker must be authenticated and have the appropriate permissions to exploit this issue. If the server is configured as read-only, remote code execution (RCE) is not possible; however, the malicious file upload may still be achievable. This problem is fixed in LORIS v26.0.5 and above, v27.0.2 and above, and v28.0.0 and above. As a workaround, LORIS administrators can disable the media module if it is not being used."}, {"lang": "es", "value": "LORIS (Longitudinal Online Research and Imaging System) es una aplicaci\u00f3n web autoalojada que proporciona gesti\u00f3n de datos y proyectos para la investigaci\u00f3n en neuroimagen. Antes de las versiones 26.0.5, 27.0.2 y 28.0.0, un usuario autenticado con privilegios suficientes puede explotar una vulnerabilidad de salto de ruta para cargar un archivo malicioso en una ubicaci\u00f3n arbitraria en el servidor. Una vez cargado, el archivo puede usarse para lograr la ejecuci\u00f3n remota de c\u00f3digo (RCE). Un atacante debe estar autenticado y tener los permisos apropiados para explotar este problema. Si el servidor est\u00e1 configurado como de solo lectura, la ejecuci\u00f3n remota de c\u00f3digo (RCE) no es posible; sin embargo, la carga del archivo malicioso a\u00fan puede ser factible. Este problema est\u00e1 solucionado en LORIS v26.0.5 y superiores, v27.0.2 y superiores, y v28.0.0 y superiores. Como soluci\u00f3n alternativa, los administradores de LORIS pueden deshabilitar el m\u00f3dulo de medios si no se est\u00e1 utilizando."}], "lastModified": "2026-03-05T17:41:15.220", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mcgill:loris:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B143A02C-B7A7-48AB-BB97-804A089C1081", "versionEndExcluding": "26.0.5"}, {"criteria": "cpe:2.3:a:mcgill:loris:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1883C04-6846-427A-BFFE-4C3AF35CCC19", "versionEndExcluding": "27.0.2", "versionStartIncluding": "27.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}