parse-community parse-server up to 8.6.54/9.6.0-alpha.43 HTTP Request recursion

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k1.12

Summaryinfo

A vulnerability classified as problematic has been found in parse-community parse-server up to 8.6.54/9.6.0-alpha.43. Impacted is an unknown function of the component HTTP Request Handler. The manipulation leads to recursion. This vulnerability is documented as CVE-2026-33498. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in parse-community parse-server up to 8.6.54/9.6.0-alpha.43 and classified as problematic. This issue affects some unknown processing of the component HTTP Request Handler. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-33498 since 03/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 8.6.55 or 9.6.0-alpha.44 eliminates this vulnerability. Applying the patch 2581b5426047ce9cbcd3d9c0e8379e9c30e23ab5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: parse-server 8.6.55/9.6.0-alpha.44
Patch: 2581b5426047ce9cbcd3d9c0e8379e9c30e23ab5

Timelineinfo

03/20/2026 CVE reserved
03/24/2026 +4 days Advisory disclosed
03/24/2026 +0 days VulDB entry created
03/29/2026 +5 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-9fjp-q3c4-6w3j
Status: Confirmed

CVE: CVE-2026-33498 (🔒)
GCVE (CVE): GCVE-0-2026-33498
GCVE (VulDB): GCVE-100-352841

Entryinfo

Created: 03/24/2026 20:49
Updated: 03/29/2026 09:02
Changes: 03/24/2026 20:49 (69), 03/29/2026 09:02 (12)
Complete: 🔍
Cache ID: 216:5F7:103

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