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    CVE-2026-33498

    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.

    Published:Mar 24, 2026
    Last Modified:Mar 26, 2026
    EPS:Mar 24, 2026
    EPSS Score:0.00044
    CVSS Score:7.5

    Affected Products

    Vendor
    Parse Community
    Product
    Parse Server
    Vendor
    Parseplatform
    Product
    Parse-server

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-674 Uncontrolled Recursion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads

    Related CVEs

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    CVE-2026-66009 (CVSS 6.3) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.5 and >= 8.2.2 before 8.6.86 return GraphQL validation erro…
    CVE-2026-66008 (CVSS 6.3) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation …
    CVE-2026-64627 (CVSS 6.9) — Parse Server versions >= 9.0.0 before 9.10.0-alpha.4 and versions before 8.6.85 contain a schema disclosure vu…
    CVE-2026-61448 (CVSS 2.1) — Parse Server is affected by a stored cross-site scripting (XSS) vulnerability in versions >= 9.0.0, < 9.10.0-a…
    CVE-2026-57481 (CVSS 2.3) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-57480 (CVSS 8.7) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-55778 (CVSS 2.1) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-53726 (CVSS 6.9) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior …
    CVE-2026-53725 (CVSS 5.9) — Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. From v…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High