Vulnerability Description
JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, the src/jsonata.js environment.lookup function used a bypassable hasOwnProperty check. Crafted expressions could use $hasOwnProperty, $spread, $string, prototype access, and $constructor to reach the object prototype and invoke process.getBuiltinModule with child_process, executing arbitrary code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.1.
Related Weaknesses (CWE)
References
- https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa
- https://github.com/jsonata-js/jsonata/pull/799
- https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8
- https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1
- https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f
FAQ
What is CVE-2026-77414?
CVE-2026-77414 is a documented vulnerability. JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, the src/jsonata.js environment.lookup function used a bypassable hasOwnProperty check. Crafted expressions could use $has...
How severe is CVE-2026-77414?
CVSS scoring is not yet available for CVE-2026-77414. Check NVD for updates.
Is there a patch for CVE-2026-77414?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.