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Vulnerability record · CVE-2026-33498 · published 24 March 2026

CVE-2026-33498: Parseplatform parse-server vulnerability

Parseplatform · Parse Server

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.55 and 9.6.0-alpha.44, an attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944. This issue has been patched in versions 8.6.55 and 9.6.0-alpha.44.

8.7 CVSS 4.0 High EPSS 0.62% · top 52.5% CWE-674 · CWE-674
8.7CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.55 and 9.6.0-alpha.44, an attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944. This issue has been patched in versions 8.6.55 and 9.6.0-alpha.44.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/parse-community/parse-server/commit/2581b5426047ce9cbcd3d9c0e8379e9c30e23ab5 Patch
https://github.com/parse-community/parse-server/commit/85994eff9e7b34cac7e1a2f5791985022a1461d1 Patch
https://github.com/parse-community/parse-server/pull/10257 Issue Tracking
https://github.com/parse-community/parse-server/pull/10258 Issue Tracking
https://github.com/parse-community/parse-server/security/advisories/GHSA-9fjp-q3c4-6w3j Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-33498), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.