CVE-2026-32944Network attack vector

Unauthenticated process crash via recursive query validation

Published Mar 18, 2026 · Updated Mar 18, 2026

Uncontrolled recursion in Parse Server before 8.6.45 and 9.0.0 through 9.6.0-alpha.20 allows remote attackers to crash the process. DatabaseController.validateQuery recursively descends into nested $or, $and, and $nor conditions without enforcing a maximum depth, exhausting the JavaScript call stack. Any unauthenticated client able to submit a query can terminate the server with one request and deny service to all connected clients; the depth limit remains disabled unless configured.

CVSS severity8.7
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in Parse Server before 8.6.45 and 9.0.0 through 9.6.0-alpha.20 allows remote attackers to crash the process. DatabaseController.validateQuery recursively descends into nested $or, $and, and $nor conditions without enforcing a maximum depth, exhausting the JavaScript call stack. Any unauthenticated client able to submit a query can terminate the server with one request and deny service to all connected clients; the depth limit remains disabled unless configured.

The record

CVE
CVE-2026-32944
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-674, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.6.45
  2. Affected versionversion=>= 9.0.0, < 9.6.0-alpha.21

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=< 8.6.45; version=>= 9.0.0, < 9.6.0-alpha.21

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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