{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "filebrowser",
          "vendor": "filebrowser",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.63.17"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername() when Signup=true and CreateUserDir=true, but the many-to-one normalization can collapse usernames such as team/one, team one, and team-one to the same home directory without checking whether the resulting scope is already taken, allowing a second registrant to gain full read and write access to another user\u0027s files. This issue is fixed in version 2.63.17."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-647",
              "description": "CWE-647: Use of Non-Canonical URL Paths for Authorization Decisions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-706",
              "description": "CWE-706: Use of Incorrectly-Resolved Name or Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-15T15:47:23.539Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7rc3-g7h6-22m7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7rc3-g7h6-22m7"
        },
        {
          "name": "https://github.com/filebrowser/filebrowser/commit/883a36f02fcb69566a8628cb47f18fdc73348387",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/filebrowser/filebrowser/commit/883a36f02fcb69566a8628cb47f18fdc73348387"
        },
        {
          "name": "https://github.com/filebrowser/filebrowser/releases/tag/v2.63.17",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/filebrowser/filebrowser/releases/tag/v2.63.17"
        }
      ],
      "source": {
        "advisory": "GHSA-7rc3-g7h6-22m7",
        "discovery": "UNKNOWN"
      },
      "title": "File Browser: Colliding username normalization gives two users the same home directory"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-62685",
    "datePublished": "2026-07-15T15:47:23.539Z",
    "dateReserved": "2026-07-14T20:22:04.395Z",
    "dateUpdated": "2026-07-15T15:47:23.539Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-62685\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-15T16:16:51.783\",\"lastModified\":\"2026-07-15T18:15:13.373\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername() when Signup=true and CreateUserDir=true, but the many-to-one normalization can collapse usernames such as team/one, team one, and team-one to the same home directory without checking whether the resulting scope is already taken, allowing a second registrant to gain full read and write access to another user\u0027s files. This issue is fixed in version 2.63.17.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"filebrowser\",\"product\":\"filebrowser\",\"versions\":[{\"version\":\"\u003c 2.63.17\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-647\"},{\"lang\":\"en\",\"value\":\"CWE-706\"}]}],\"references\":[{\"url\":\"https://github.com/filebrowser/filebrowser/commit/883a36f02fcb69566a8628cb47f18fdc73348387\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/filebrowser/filebrowser/releases/tag/v2.63.17\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7rc3-g7h6-22m7\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}