---
id: CVE-2026-34574
title: >-
  Parse Server is an open source backend that can be deployed to any
  infrastructure that can run Node.js
summary: >-
  Parse Server is an open source backend that can be deployed to any
  infrastructure that can run Node.js. Prior to versions 8.6.69 and
  9.7.0-alpha.14, an authenticated user can bypass the immutability guard on
  session fields (expiresAt, cr…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-697
vendor: parseplatform
product: parse-server
affected:
  - parse-server < 8.6.69
  - 'parse-server >= 9.0.0, < 9.7.0'
  - parse-server = 9.7.0
patched:
  - parse-server 9.7.0
published: '2026-03-31'
updated: '2026-07-24'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-34574'
references:
  - url: >-
      https://github.com/parse-community/parse-server/commit/90802969fc713b7bc9733d7255c7519a6ed75d21
    label: security-advisories@github.com
  - url: >-
      https://github.com/parse-community/parse-server/commit/ebccd7fe2708007e62f705ee1c820a6766178777
    label: security-advisories@github.com
  - url: 'https://github.com/parse-community/parse-server/pull/10347'
    label: security-advisories@github.com
  - url: 'https://github.com/parse-community/parse-server/pull/10348'
    label: security-advisories@github.com
  - url: >-
      https://github.com/parse-community/parse-server/security/advisories/GHSA-f6j3-w9v3-cq22
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.0021
epssPercentile: 0.11446
ingestedAt: '2026-07-24T20:38:02.569Z'
---

## Overview

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.69 and 9.7.0-alpha.14, an authenticated user can bypass the immutability guard on session fields (expiresAt, createdWith) by sending a null value in a PUT request to the session update endpoint. This allows nullifying the session expiry, making the session valid indefinitely and bypassing configured session length policies. This issue has been patched in versions 8.6.69 and 9.7.0-alpha.14.

## Affected

- `parse-server < 8.6.69`
- `parse-server >= 9.0.0, < 9.7.0`
- `parse-server = 9.7.0`

## Remediation

Upgrade past the affected range:

- `parse-server 9.7.0`