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zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module

Type: advisorySources: OSV

Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-36814
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 04:50 UTC · Revision 1

Source evidence

zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module

core-osv · Original source

Published 3 Jul 2023, 16:48 UTC

Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.

osv:CVE-2023-36814
Complete source record
{
  "id": "585239612c74850c71d4d2c40bb03daf58b2c9a7f1c951a9cf8a90882a50199e",
  "url": "https://osv.dev/vulnerability/CVE-2023-36814",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module",
    "summary": "Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.",
    "evidence": "osv:CVE-2023-36814",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-36814",
      "aliases": [
        "CVE-2023-36814",
        "GHSA-4hpj-8rhv-9x87",
        "PYSEC-2023-113"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/zopefoundation/products.cmfcore",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4ac51b398fe542f6f979ed87f7dbd73784746bf1"
                },
                {
                  "fixed": "40f03f43a60f28ca9485c8ef429efef729be54e5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:zope:products.cmfcore:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "40f03f43a60f28ca9485c8ef429efef729be54e5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.1",
            "3.0",
            "2.7.0",
            "2.6.0",
            "2.5.4",
            "2.5.3",
            "2.5.2",
            "2.5.1",
            "2.5.0",
            "2.4.8",
            "2.4.7",
            "2.4.6",
            "2.4.5",
            "2.4.4",
            "2.4.3",
            "2.4.2",
            "2.4.0",
            "2.4.0b8",
            "2.4.0b7",
            "2.4.0b6",
            "2.4.0b5",
            "2.4.0b4",
            "2.4.0b3",
            "2.4.0b1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-36814.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.954499829Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36814.json",
        "https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-36814",
        "https://github.com/zopefoundation/Products.CMFCore/commit/40f03f43a60f28ca9485c8ef429efef729be54e5"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-770"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36814.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-36814",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518270,
  "published_at": "2023-07-03T16:48:36.149+00:00"
}