CVE-2026-32944: Parse server Parse Server Crash Vulnerability

HIGH
Advisory Identifier: GHSA-9xp9-j92r-p88v
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CWE-674
Published
Advisory Summary

CVE-2026-32944 is a HIGH parse server crash vulnerability (CWE-674: Uncontrolled Recursion) affecting Parse server libraries in the npm ecosystem. The issue involves parse server crash via deeply nested query condition operators. Remediation is available by upgrading affected packages to version 9.6.0-alpha.21, 8.6.45.

CVE-2026-32944 at a Glance

CVE Identifier CVE-2026-32944
GHSA Identifier GHSA-9xp9-j92r-p88v
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-674: Uncontrolled Recursion
Affected Product Parse server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2026-32944

To remediate this vulnerability, upgrade all affected Parse server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

parse-server fixed: 9.6.0-alpha.21 
npm install parse-server@9.6.0-alpha.21
parse-server fixed: 8.6.45 
npm install parse-server@8.6.45
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls parse-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2026-32944, inspect your project dependencies using npm:

npm ls parse-server

Analyze the terminal output to locate any version of Parse server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.6.0-alpha.21), your application is affected.

Note: The npm ls parse-server command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-674: Uncontrolled Recursion, where the product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. In Parse server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact An unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. ### Patches A depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app. ### Workarounds None.

CVE-2026-32944 Affected Parse server Versions

2 component(s)
Fixed Versions:
9.6.0-alpha.218.6.45
Product / Package Ecosystem Affected Versions Fixed Version
parse-server
npm/parse-server
npm
≥ 9.0.0
< 9.6.0-alpha.21
9.6.0-alpha.21
parse-server
npm/parse-server
npm
< 8.6.45
8.6.45

References

GitHub Advisory / Wiki ADVISORY
https://github.com/parse-community/parse-server/security/advisories/GHSA-9xp9-j92r-p88v
NVD — CVE-2026-32944 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32944
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server/pull/10202
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server/pull/10203
Parse server Source Repository REPOSITORY
https://github.com/parse-community/parse-server

Frequently Asked Questions

What is CVE-2026-32944?
CVE-2026-32944 is a security vulnerability in Parse server involving Parse Server crash via deeply nested query condition operators under CWE-674: Uncontrolled Recursion.
Which Parse server versions are affected?
Affected versions include releases prior to 9.6.0-alpha.21, 8.6.45 across affected packages: parse-server.
What version fixes CVE-2026-32944?
Upgrading to 9.6.0-alpha.21, 8.6.45 (or the latest patched release for your respective branch) resolves the vulnerability.
Is parse-server affected?
Yes, parse-server is affected in releases prior to 9.6.0-alpha.21, 8.6.45. Upgrade your dependency to 9.6.0-alpha.21, 8.6.45 or later.
What CWE is associated with CVE-2026-32944?
CVE-2026-32944 is classified under CWE-674: Uncontrolled Recursion (The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.).
How can I check npm dependencies for CVE-2026-32944?
Run the dependency tree command: 'npm ls parse-server'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9xp9-j92r-p88v",
  "modified" : "2026-03-19T21:11:56Z",
  "published" : "2026-03-17T17:35:52Z",
  "aliases" : [ "CVE-2026-32944" ],
  "summary" : "Parse Server crash via deeply nested query condition operators",
  "details" : "### Impact\n\nAn unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients.\n\n### Patches\n\nA depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app.\n\n### Workarounds\n\nNone.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parse-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.6.0-alpha.21"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "parse-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.6.45"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/security/advisories/GHSA-9xp9-j92r-p88v"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-32944"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/pull/10202"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/parse-community/parse-server/pull/10203"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/parse-community/parse-server"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-674" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-17T17:35:52Z",
    "nvd_published_at" : "2026-03-18T22:16:25Z"
  }
}