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nextcloud-desktop — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2023-29000

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.

Products
nextcloud-desktop
Affected versions
Not specified
Fixed versions
3.7.0-1
CVEs
CVE-2023-29000
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 15:52 UTC · Revision 1

Source evidence

DEBIAN-CVE-2023-29000

core-osv · Original source

Published 4 Apr 2023, 13:15 UTC

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.

osv:DEBIAN-CVE-2023-29000

nextcloud-desktop

Fixed versions: 3.7.0-1

nextcloud-desktop

Fixed versions: 3.7.0-1

nextcloud-desktop

Fixed versions: 3.7.0-1

Complete source record
{
  "id": "4dd1c5301b848ad605ed92972d37b1bffab7fa7566f15985ad91bdf4b106dfa4",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-29000",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2023-29000",
    "summary": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.",
    "evidence": "osv:DEBIAN-CVE-2023-29000",
    "products": [
      {
        "name": {
          "value": "nextcloud-desktop",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.7.0-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nextcloud-desktop",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.7.0-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nextcloud-desktop",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.7.0-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2023-29000",
      "aliases": [
        "DEBIAN-CVE-2023-29000"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.7.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "nextcloud-desktop",
            "purl": "pkg:deb/debian/nextcloud-desktop?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-29000.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.7.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "nextcloud-desktop",
            "purl": "pkg:deb/debian/nextcloud-desktop?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-29000.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.7.0-1"
                }
              ]
            }
          ],
          "package": {
            "name": "nextcloud-desktop",
            "purl": "pkg:deb/debian/nextcloud-desktop?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-29000.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T18:02:13.140073496Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-29000"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2023-29000"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-29000",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 455902,
  "published_at": "2023-04-04T13:15:09.067+00:00"
}