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High memory usage in Nextcloud server

Type: advisorySources: OSV

Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2022-24741
Confirmed fixed CVEs
Not specified
Updated in this feed
8 Nov 2026, 00:54 UTC · Revision 1

Source evidence

High memory usage in Nextcloud server

core-osv · Original source

Published 9 Mar 2022, 21:30 UTC

Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.

osv:CVE-2022-24741
Complete source record
{
  "id": "c2d166f3f95213346dbf3bd0ede20846d569daf17aa1e0b77406ed1181f4053a",
  "url": "https://osv.dev/vulnerability/CVE-2022-24741",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "High memory usage in Nextcloud server",
    "summary": "Nextcloud server is an open source, self hosted cloud style services platform. In affected versions an attacker can cause a denial of service by uploading specially crafted files which will cause the server to allocate too much memory / CPU. It is recommended that the Nextcloud Server is upgraded to 21.0.8 , 22.2.4 or 23.0.1. Users unable to upgrade should disable preview generation with the `'enable_previews'` config flag.",
    "evidence": "osv:CVE-2022-24741",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2022-24741",
      "aliases": [
        "CVE-2022-24741",
        "GHSA-jf3h-xf4q-mh89"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8985b7930653139859002eb3eca2852999ed8f0d"
                },
                {
                  "fixed": "2721bbb5da8a9abb9a8ee610181315ad9b6b8ba8"
                },
                {
                  "introduced": "c67e1420c8f741bfa43db08fcc295ec3b156fff8"
                },
                {
                  "fixed": "fb5dbd80594c2c84fbd7fd33f04cea752e619aad"
                },
                {
                  "introduced": "0619207f13792250aea775a2c3133d41ab625980"
                },
                {
                  "last_affected": "0619207f13792250aea775a2c3133d41ab625980"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "21.0.0"
                      },
                      {
                        "fixed": "21.0.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "22.0.0"
                      },
                      {
                        "fixed": "22.2.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:23.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "23.0.0"
                      },
                      {
                        "last_affected": "23.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "23.0.0",
            "v21.0.8rc3",
            "v22.2.4rc3",
            "v21.0.8rc2",
            "v22.2.4rc2",
            "v21.0.8rc1",
            "v22.2.4rc1",
            "v23.0.0",
            "v21.0.7",
            "v22.2.3",
            "v22.2.2",
            "v21.0.6",
            "v22.2.1",
            "v22.2.1rc1",
            "v21.0.6rc1",
            "v21.0.5",
            "v22.2.0",
            "v21.0.5rc1",
            "v22.2.0rc2",
            "v22.1.1",
            "v22.1.1rc2",
            "v22.1.1rc1",
            "v21.0.4",
            "v22.1.0",
            "22.1.0",
            "v22.1.0rc1",
            "v21.0.4rc1",
            "v22.0.0",
            "v21.0.3",
            "v21.0.3rc1",
            "v21.0.2",
            "v21.0.2RC1",
            "v21.0.1",
            "v21.0.1RC1",
            "v21.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-24741.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.326893094Z",
      "provider": "osv",
      "references": [
        "https://hackerone.com/reports/1261225",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24741.json",
        "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jf3h-xf4q-mh89",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-24741",
        "https://security.gentoo.org/glsa/202208-17",
        "https://github.com/nextcloud/server/pull/30291"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24741.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-24741",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521124,
  "published_at": "2022-03-09T21:30:13+00:00"
}