CVE-2026-113656CWE-770denial-of-service

CVE-2026-113656

Medium · published October 20, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
36.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00437 · 36.9th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-10-20T21:17Z
References (4)
https://github.com/apostrophecms/apostrophe/commit/9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce · [email protected]https://github.com/apostrophecms/apostrophe/commit/f84fd41cbf6c22eb8d0008fc9c25df1f7130b350 · [email protected]https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/[email protected] · [email protected]https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-89mh-mm8c-mv7f · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 16:49Z
    ApostropheCMS: Unauthenticated unbounded multipart upload → disk-exhaustion DoS
    cvelistv5
  • 20 OCT 16:49Z
    ApostropheCMS: Unauthenticated unbounded multipart upload → disk-exhaustion DoS
    cvelistv5