CERTFR-2026-AVI-1283
Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans les produits Nextcloud. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, un déni de service à distance et une atteinte à la confidentialité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Nextcloud N/A Team Folders versions 21.x antérieures à 21.0.8
Nextcloud Server Server versions 33.0.x antérieures à 33.0.6
Nextcloud Server Server versions 34.0.x antérieures à 34.0.1
Nextcloud N/A Team Folders versions 20.x et antérieures à 20.1.15
Nextcloud N/A Collectives versions antérieures à 4.4.1
Nextcloud N/A Team Folders versions 14.x antérieures à 14.0.12
Nextcloud N/A Team Folders versions 15.x et antérieures à 15.3.13
Nextcloud N/A Team Folders versions antérieures à 13.1.8
Nextcloud N/A Team Folders versions 18.x et antérieures à 18.1.14
Nextcloud N/A Team Folders versions 16.x antérieures à 16.0.16
Nextcloud N/A Team Folders versions 19.x antérieures à 19.1.19
Nextcloud N/A Team Folders versions 17.x antérieures à 17.0.16
Nextcloud N/A Team Folders versions 22.x antérieures à 22.0.1
Nextcloud Server Server versions 32.0.x antérieures à 32.0.12 pour nextcloud
Nextcloud N/A files_lock versions 33.0.x antérieures à 33.0.6
References

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Team Folders versions 21.x ant\u00e9rieures \u00e0 21.0.8",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Server versions 33.0.x ant\u00e9rieures \u00e0 33.0.6",
      "product": {
        "name": "Server",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Server versions 34.0.x ant\u00e9rieures \u00e0 34.0.1",
      "product": {
        "name": "Server",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 20.x et ant\u00e9rieures \u00e0 20.1.15",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Collectives versions ant\u00e9rieures \u00e0 4.4.1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 14.x ant\u00e9rieures \u00e0 14.0.12",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 15.x et ant\u00e9rieures \u00e0 15.3.13",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions ant\u00e9rieures \u00e0 13.1.8",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 18.x et ant\u00e9rieures \u00e0 18.1.14",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 16.x ant\u00e9rieures \u00e0 16.0.16",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 19.x ant\u00e9rieures \u00e0 19.1.19",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 17.x ant\u00e9rieures \u00e0 17.0.16",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Team Folders versions 22.x ant\u00e9rieures \u00e0 22.0.1",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "Server versions 32.0.x ant\u00e9rieures \u00e0 32.0.12 pour nextcloud",
      "product": {
        "name": "Server",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    },
    {
      "description": "files_lock versions 33.0.x ant\u00e9rieures \u00e0 33.0.6",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Nextcloud",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-82985",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-82985"
    },
    {
      "name": "CVE-2026-68493",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68493"
    },
    {
      "name": "CVE-2026-77169",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-77169"
    },
    {
      "name": "CVE-2026-77165",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-77165"
    },
    {
      "name": "CVE-2026-77166",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-77166"
    }
  ],
  "initial_release_date": "2026-10-09T00:00:00",
  "last_revision_date": "2026-10-09T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1283",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-10-09T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Nextcloud. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Nextcloud",
  "vendor_advisories": [
    {
      "published_at": "2026-10-08",
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-f99w-3pm7-v4cv",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-f99w-3pm7-v4cv"
    },
    {
      "published_at": "2026-10-08",
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-4vpp-fp9q-9g23",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4vpp-fp9q-9g23"
    },
    {
      "published_at": "2026-10-08",
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-5gv7-hw69-w6px",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-5gv7-hw69-w6px"
    },
    {
      "published_at": "2026-10-08",
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-9mjh-89xm-hcqw",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9mjh-89xm-hcqw"
    },
    {
      "published_at": "2026-10-08",
      "title": "Bulletin de s\u00e9curit\u00e9 Nextcloud GHSA-22w9-gpgv-pcgc",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-22w9-gpgv-pcgc"
    }
  ]
}


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