EUVD-2026-64083

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 a...

CVE-2026-77414 JSONata: Arbitrary Code Execution via crafted JSONata expressions

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 a...

Arbitrary Code Execution

SandboxJS is vulnerable to a sandbox escape vulnerability. The vulnerability is due to inconsistent key validation during property access, where the key is sanitized using hasOwnPropertykey but not strictly enforced as a string, allowing attackers to supply crafted objects that coerce to differen...