GHSA-663r-x48j-fg8p

    Dashboard / Vulnerabilities / GHSA-663r-x48j-fg8p

    GHSA-663r-x48j-fg8p

    Published: 15 Jun 2026Last Modified: 8 Sept 2026

    Summary: jsonata: Function Binding Prototype Pollution via hasOwnProperty Override

    Details: A weakness has been identified in jsonata-js jsonata up to 2.2.0. The affected element is the function createFrame of the file src/jsonata.js of the component Function Binding Frame System. This manipulation causes improperly controlled modification of object prototype attributes. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

    References: https://nvd.nist.gov/vuln/detail/CVE-2026-12208, https://github.com/jsonata-js/jsonata/pull/799, https://github.com/jsonata-js/jsonata/pull/806, https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2, https://github.com/jsonata-js/jsonata/commit/f09df8416eab8ff44926fc6527c80fb8701de159, https://github.com/OriginSecurityX/jsonata-hasownproperty-bypass, https://github.com/jsonata-js/jsonata, https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8, https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1, https://vuldb.com/cve/CVE-2026-12208, https://vuldb.com/submit/832446, https://vuldb.com/vuln/370850, https://vuldb.com/vuln/370850/cti

    Affected packages

    Package

    Name: jsonata

    Purl: pkg:npm/jsonata

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -1.8.8

    Affected versions

    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
    GHSA-663r-x48j-fg8p | CVE-DB