CVE-2026-113656 MEDIUM

CVE-2026-113656: ApostropheCMS: Unauthenticated unbounded multipart upload → disk-exhaustion DoS

Vendor Apostrophecms
Product apostrophe
Weakness CWE-770 · Uncontrolled resource consumption
Published October 20, 2026
Last update October 21, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

ApostropheCMS is an open-source Node.js content management system. Prior to 1.5.5 of the ApostropheCMS Form add-on, its form submission route stages unbounded multipart uploads before form validation or authentication and lacks upload size, count, and rate limits. Repeated unauthenticated submissions can consume temporary disk storage and disrupt form handling or other host services. This issue is fixed in ApostropheCMS Form 1.5.5.

Key dates

02Disclosure timeline

October 20, 2026 CVE published
October 21, 2026 Record updated

Related vulnerabilities

04Related CVE