---
id: CVE-2026-121414
title: >-
  Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 Denial of Service
  via afterSave Pointer Update
summary: >-
  Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a
  serialization error when an object update uses a dot notation key targeting a
  pointer field's object identifier on a class with an afterSave trigger.
  Attacker…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-248
vendor: parse-community
product: parse-server
affected:
  - parse-server >= 9.0.0 < 9.10.6-alpha.2
  - parse-server < 8.6.110
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-07T02:54:29.294146Z'
published: '2026-11-03'
updated: '2026-11-07'
sourceUpdated: '2026-11-07T02:54:38.073Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121414'
references:
  - url: >-
      https://github.com/parse-community/parse-server/security/advisories/GHSA-wc3c-6843-q7mv
    label: GitHub Security Advisory (GHSA-wc3c-6843-q7mv)
  - url: 'https://github.com/parse-community/parse-server/pull/10802'
  - url: 'https://github.com/parse-community/parse-server/pull/10803'
  - url: >-
      https://www.vulncheck.com/advisories/parse-server-before-8.6.110-and-9.0.0-before-9.10.6-alpha.2-denial-of-service-via-aftersave-pointer-update
    label: >-
      VulnCheck Advisory: Parse Server before 8.6.110 and 9.0.0 before
      9.10.6-alpha.2 Denial of Service via afterSave Pointer Update
tags:
  - cve.org
epss: 0.00334
epssPercentile: 0.26925
ingestedAt: '2026-11-05T19:30:42.965Z'
---

## Overview

Parse Server before 8.6.110 and 9.0.0 before 9.10.6-alpha.2 fails to contain a serialization error when an object update uses a dot notation key targeting a pointer field's object identifier on a class with an afterSave trigger. Attackers, including unauthenticated clients when objects are writable without a session, can send such an update to crash the Node process.

## Affected

- `parse-server >= 9.0.0 < 9.10.6-alpha.2`
- `parse-server < 8.6.110`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.