High 7.5Published Oct 20, 2026

CVE-2026-113658ApostropheCMS: Unauthenticated CSV import requests leave rejected uploads in the system temporary directory

Updated under an hour ago (2026-10-21 10:10 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for apostrophecms apostrophe

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400, CWE-459, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 20, 2026

Affected products

Affected products

apostrophecms apostrophe apostrophecms:apostrophe (from the name)	before 4.33.0	CNA record

References

https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-qhcq-9pm2-c9w9x-refsource-confirm
https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845cex-refsource-misc
https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350x-refsource-misc
https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.33.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.