VULNERABILITY INTELLIGENCE
CVE-2026-77414
EPSS probability0.57%
CISA KEVNot currently listed
Published2026-08-21
Last modified2026-10-12
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.
Weakness classification
- security-advisories@github.com: CWE-94