---
id: CVE-2026-112768
title: >-
  Parse Server before 8.6.99 and 9.x before 9.10.3-alpha.2 Information
  Disclosure via User Update
summary: >-
  Parse Server before 8.6.99 and 9.0.0 before 9.10.3-alpha.2 evaluates checks
  against the target account during a user update before authorizing the caller,
  and reflects their outcome in the response. An unauthorized caller, with or
  withou…
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: parse-community
product: parse-server
affected:
  - parse-server >= 9.0.0 < 9.10.3-alpha.2
  - parse-server < 8.6.99
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-19T21:24:04.328659Z'
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T21:24:16.538Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112768'
references:
  - url: >-
      https://github.com/parse-community/parse-server/security/advisories/GHSA-p49q-9w65-f9p7
    label: GitHub Security Advisory (GHSA-p49q-9w65-f9p7)
  - url: >-
      https://www.vulncheck.com/advisories/parse-server-before-8.6.99-and-9-x-before-9.10.3-alpha.2-information-disclosure-via-user-update
    label: >-
      VulnCheck Advisory: Parse Server before 8.6.99 and 9.x before
      9.10.3-alpha.2 Information Disclosure via User Update
tags:
  - cve.org
ingestedAt: '2026-10-19T19:38:06.463Z'
---

## Overview

Parse Server before 8.6.99 and 9.0.0 before 9.10.3-alpha.2 evaluates checks against the target account during a user update before authorizing the caller, and reflects their outcome in the response. An unauthorized caller, with or without a session, can confirm guessed usernames or emails and, when passwordPolicy.maxPasswordHistory or doNotAllowUsername is set, guessed current or previous passwords, bypassing account lockout.

## Affected

- `parse-server >= 9.0.0 < 9.10.3-alpha.2`
- `parse-server < 8.6.99`

## Remediation

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