ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.
History

Fri, 23 Oct 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 20 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Apostrophecms
Apostrophecms apostrophecms
Vendors & Products Apostrophecms
Apostrophecms apostrophecms

Tue, 20 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Description ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.
Title ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory
Weaknesses CWE-400
CWE-459
CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-20T16:56:01.862Z

Updated: 2026-10-23T01:55:01.966Z

Reserved: 2026-10-20T14:27:46.641Z

Link: CVE-2026-113658

cve-icon Vulnrichment

Updated: 2026-10-23T01:54:54.447Z

cve-icon NVD

Status : Deferred

Published: 2026-10-20T17:17:36.917

Modified: 2026-10-23T02:16:56.200

Link: CVE-2026-113658

cve-icon Redhat

No data.