CVE-2026-121965

    Dashboard / Vulnerabilities / CVE-2026-121965

    CVE-2026-121965

    Published: 4 Nov 2026Last Modified: 5 Nov 2026

    Summary: Parse Server before 8.6.113 and 9.10.6-alpha.5 Prototype Pollution via Dot Notation Key

    Details: Parse Server before 8.6.113 and 9.0.0 before 9.10.6-alpha.5 contains a prototype pollution vulnerability when building objects for Cloud Code triggers and LiveQuery, where a dot notation key whose intermediate segment resolves through an inherited member writes onto a process-wide built-in. Clients with write access to an object in a class with a trigger or LiveQuery can corrupt a built-in function, making unrelated requests fail until restart and denying service to all clients and hosted applications.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/121xxx/CVE-2026-121965.json, https://github.com/parse-community/parse-server/security/advisories/GHSA-95hp-82c6-25q5, https://nvd.nist.gov/vuln/detail/CVE-2026-121965, https://www.vulncheck.com/advisories/parse-server-before-8.6.113-and-9.10.6-alpha.5-prototype-pollution-via-dot-notation-key, https://github.com/parse-community/parse-server/pull/10810, https://github.com/parse-community/parse-server/pull/10811

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 532a461d30a6ed4457839f2caf5f30d5abf51a55
    Fixed -1dc88144f09da4da15e24ce1973d5975cd5a4ecb

    Affected versions

    9.10.5
    9.10.6-alpha.4
    9.10.6-alpha.3
    9.10.6-alpha.2
    9.10.6-alpha.1
    9.10.4
    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-2026-121965 | CVE-DB