FKIE_CVE-2026-45279

Vulnerability from fkie_nvd - Published: 2026-06-01 19:16 - Updated: 2026-07-22 07:10
Severity
4.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15
References
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-j33j-qph5-4wchMitigation, Vendor Advisory
security-advisories@github.comhttps://github.com/nextcloud/server/pull/57414/filesIssue Tracking, Patch
security-advisories@github.comhttps://hackerone.com/reports/3468140Permissions Required
Impacted products
Vendor Product Version
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 31.0.0, \u003c 31.0.14"
            },
            {
              "status": "affected",
              "version": "\u003e= 32.0.0, \u003c 32.0.4"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "7BB62148-4EB3-44D6-A11A-2D6581A0026C",
              "versionEndExcluding": "31.0.14",
              "versionStartIncluding": "31.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "A405D27F-8E95-45A5-9174-99E60586700C",
              "versionEndExcluding": "32.0.4",
              "versionStartIncluding": "32.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "74D4EB7C-A643-4B77-ABC8-E882F5A9A454",
              "versionEndExcluding": "28.0.14.15",
              "versionStartIncluding": "28.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "9BB07BC2-B8A0-4E3B-AEFF-AFBA6FE3C7C0",
              "versionEndExcluding": "29.0.17.12",
              "versionStartIncluding": "29.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "63869F64-1B12-478D-B7E7-98EBE07FFD57",
              "versionEndExcluding": "30.0.17.7",
              "versionStartIncluding": "30.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "27783B45-4DFD-443E-98A9-6531E8AEE962",
              "versionEndExcluding": "31.0.14",
              "versionStartIncluding": "31.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "41E1AD78-E1DD-4C0F-A346-5E8C31C12766",
              "versionEndExcluding": "32.0.4",
              "versionStartIncluding": "32.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15"
    },
    {
      "lang": "es",
      "value": "Nextcloud es una plataforma de colaboraci\u00f3n de contenido de c\u00f3digo abierto. En Nextcloud Server desde las versiones 31.0.0 hasta antes de la 31.0.14, y 32.0.0 hasta antes de la 32.0.4, si se usa {lang} en el valor de configuraci\u00f3n del directorio de plantillas, los usuarios no administradores pueden en algunos casos copiar archivos arbitrarios (dependiendo de los permisos unix) en su propio directorio de Nextcloud a trav\u00e9s de un salto de ruta. Se recomienda que el Nextcloud Server se actualice a 32.0.4, 31.0.14. Se recomienda que el Nextcloud Enterprise Server se actualice a 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15"
    }
  ],
  "id": "CVE-2026-45279",
  "lastModified": "2026-07-22T07:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 0.7,
        "impactScore": 3.6,
        "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-2026-45279",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-02T12:50:41.800240Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-01T19:16:49.980",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j33j-qph5-4wch"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/nextcloud/server/pull/57414/files"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/3468140"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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