FKIE_CVE-2026-35165

Vulnerability from fkie_nvd - Published: 2026-04-08 19:25 - Updated: 2026-07-24 21:10
Summary
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 21.0.0 to before 27.0.3 and 28.0.1, while the document_repository frontend was restricting file access, the backend endpoint was not correctly verifying access permissions. A user could theoretically download a file that they should not have access to, if they know or can brute force the filename. This vulnerability is fixed in 27.0.3 and 28.0.1.
Impacted products
Vendor Product Version
mcgill loris *
mcgill loris 28.0.0

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Loris",
          "vendor": "aces",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 21.0.0, \u003c 27.0.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 28.0.0, \u003c 28.0.1"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mcgill:loris:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "752BF9F7-1E9D-4E71-AAC8-43F3E1533399",
              "versionEndIncluding": "27.0.2",
              "versionStartIncluding": "21.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:mcgill:loris:28.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D358B66A-04AC-44F2-8EF6-4332D8AC00F4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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. From 21.0.0 to before 27.0.3 and 28.0.1, while the document_repository frontend was restricting file access, the backend endpoint was not correctly verifying access permissions. A user could theoretically download a file that they should not have access to, if they know or can brute force the filename. This vulnerability is fixed in 27.0.3 and 28.0.1."
    },
    {
      "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. Desde la versi\u00f3n 21.0.0 hasta antes de las versiones 27.0.3 y 28.0.1, mientras que el frontend de document_repository estaba restringiendo el acceso a archivos, el endpoint del backend no estaba verificando correctamente los permisos de acceso. Un usuario podr\u00eda te\u00f3ricamente descargar un archivo al que no deber\u00eda tener acceso, si conoce o puede forzar por fuerza bruta el nombre del archivo. Esta vulnerabilidad est\u00e1 corregida en las versiones 27.0.3 y 28.0.1."
    }
  ],
  "id": "CVE-2026-35165",
  "lastModified": "2026-07-24T21:10:00.143",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-35165",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-08T20:13:01.869226Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-08T19:25:23.300",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/aces/Loris/security/advisories/GHSA-qp6x-qfx7-54wp"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-639"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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