CVE-2026-119569

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    CVE-2026-119569

    Published: 30 Oct 2026Last Modified: 1 Nov 2026

    Summary: Parse Server 9.0.0 before 9.10.5-alpha.9 Prototype Pollution Denial of Service

    Details: Parse Server before 8.6.108 and 9.0.0 before 9.10.5-alpha.9 contains a prototype pollution vulnerability because user-controlled keys are expanded into objects without own-property checks. Clients with class write access can send dot notation field keys or ACL entry names matching built-in object members to corrupt built-in functions, causing all requests to fail until server restart.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119569.json, https://github.com/parse-community/parse-server/security/advisories/GHSA-rx55-fw4j-pvpx, https://nvd.nist.gov/vuln/detail/CVE-2026-119569, https://www.vulncheck.com/advisories/parse-server-9.0.0-before-9.10.5-alpha.9-prototype-pollution-denial-of-service

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 532a461d30a6ed4457839f2caf5f30d5abf51a55
    Fixed -ee88ce35c5b566d39d220c16daf95a3b2c7bd666

    Affected versions

    9.10.4
    9.10.5-alpha.8
    9.10.5-alpha.7
    9.10.5-alpha.6
    9.10.5-alpha.5
    9.10.5-alpha.4
    9.10.5-alpha.3
    9.10.5-alpha.2
    9.10.5-alpha.1
    9.10.3
    9.10.2
    9.10.1
    9.10.0

    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
    CVE-2026-119569 | CVE-DB