CVE-2023-36814 json
zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module
published 2023-07-03 3 y ago modified 2026-09-10 1 mo ago also GHSA-4hpj-8rhv-9x87 , PYSEC-2023-113 , EUVD-2023-0209
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
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.
Patch / fix
- pypi products-cmfcore 2.7.1, 3.2
- zope products.cmfcore 3.2
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | products-cmfcore | >=3.0, <3.2 <2.7.1 <3.2 |
3.2 2.7.1 |
Affected products
- zopefoundation Products.CMFCore
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
github.com
/zopefoundation/Products.CMFCore/commit/40f03f43a60f28ca9485c8ef429efef729be54e5
web, mitigation, patch, vendor-advisory, advisory
-
github.com
/zopefoundation/Products.CMFCore/commit/c1847a9042abe7965271fa73762dfe091b576de
web
-
github.com
/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87
web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-36814
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/products-cmfcore/PYSEC-2023-113.yaml
web
-
github.com
/zopefoundation/Products.CMFCore
package
Sources
- CVE List CVE-2023-36814
- GitHub Advisory GHSA-4hpj-8rhv-9x87
- NVD CVE-2023-36814
- OSV PYSEC-2023-113
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.