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TI-2023-18608 Aliases CVE-2023-36814GHSA-4hpj-8rhv-9x87

Resource allocation without limits in zopefoundation Products.CMFCore

Priority MEDIUM 40CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00723 54th percentileScored 2026-11-07
Fix Fixed Products.CMFCore (zopefoundation): 3.2Products.CMFCore (PyPI): 3.2, 2.7.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zopefoundationProducts.CMFCorebefore 3.23.2Patch availableCNA
—Products.CMFCore (PyPI)3.0 to before 3.23.2Patch availableGHSA-4hpj-8rhv-9x87
—Products.CMFCore (PyPI)before 2.7.12.7.1Patch availableGHSA-4hpj-8rhv-9x87
  • Products.CMFCore Vendorzopefoundation Affected before 3.2 Fixed in 3.2 Patch available CNA
  • Products.CMFCore (PyPI) Vendor— Affected 3.0 to before 3.2 Fixed in 3.2 Patch available GHSA-4hpj-8rhv-9x87
  • Products.CMFCore (PyPI) Vendor— Affected before 2.7.1 Fixed in 2.7.1 Patch available GHSA-4hpj-8rhv-9x87

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:zope:products.cmfcore:*:*:*:*:*:*:*:*before 3.2Vulnerablezopefoundation
  • cpe:2.3:a:zope:products.cmfcore:*:*:*:*:*:*:*:* Versions before 3.2 Vulnerable ·zopefoundation

Remediation

  • Fix · CNA Products.CMFCore (zopefoundation) Fixed in 3.2
  • Fix · GHSA-4hpj-8rhv-9x87 Products.CMFCore (PyPI) Fixed in 3.2 Advisory →
  • Fix · GHSA-4hpj-8rhv-9x87 Products.CMFCore (PyPI) Fixed in 2.7.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-36814
  2. 2026-10-03 Alias added: GHSA-4hpj-8rhv-9x87

References

Patch 1

Advisory 2

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences