FKIE_CVE-2026-116682

Vulnerability from fkie_nvd - Published: 2026-10-27 18:17 - Updated: 2026-10-27 18:17
Severity
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Summary
FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.5.2-stable and 2.0.1-beta, file read handling in backend/pkg/indexing/indexingFiles.go resolves symbolic links through GetRealPath without confirming that the resolved target remains inside the source root and the user's authorized scope. Download, preview, media, OnlyOffice, and public-share read flows that enable FollowSymlinks can therefore serve an out-of-scope target through a reachable in-scope symlink. An authenticated user with download access can read server-accessible files outside the assigned scope, and a holder of a public share link can do the same without an account when the shared directory exposes such a symlink. This issue is fixed in 1.5.2-stable and 2.0.1-beta.
References
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/commit/3c8c02414eefd3351ffe437fa39ff6eb150ffa67
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/commit/4126edeb07a015c3809a89249b283e07a4e50c38
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/pull/2795
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/pull/2800
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/releases/tag/v1.5.2-stable
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/releases/tag/v2.0.1-beta
security-advisories@github.comhttps://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-mgqf-5mf5-prfj
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "filebrowser",
          "vendor": "gtsteffaniak",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.5.2-stable"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0-beta, \u003c 2.0.1-beta"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.5.2-stable and 2.0.1-beta, file read handling in backend/pkg/indexing/indexingFiles.go resolves symbolic links through GetRealPath without confirming that the resolved target remains inside the source root and the user\u0027s authorized scope. Download, preview, media, OnlyOffice, and public-share read flows that enable FollowSymlinks can therefore serve an out-of-scope target through a reachable in-scope symlink. An authenticated user with download access can read server-accessible files outside the assigned scope, and a holder of a public share link can do the same without an account when the shared directory exposes such a symlink. This issue is fixed in 1.5.2-stable and 2.0.1-beta."
    }
  ],
  "id": "CVE-2026-116682",
  "lastModified": "2026-10-27T18:17:36.003",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-27T18:17:36.003",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/commit/3c8c02414eefd3351ffe437fa39ff6eb150ffa67"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/commit/4126edeb07a015c3809a89249b283e07a4e50c38"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/pull/2795"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/pull/2800"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.5.2-stable"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/releases/tag/v2.0.1-beta"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-mgqf-5mf5-prfj"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}



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