CVE-2026-77414
Critical · CVSS 9.3- CVSS
- 9.3
- nvd
- EPSS
- 0.57%
- 46th pct
- KEV
- No
- Class
- oss containerizable
- CWE-94
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.
Affected packages
| npm | jsonata | 0 → 1.8.8 |
| npm | jsonata | 2.0.0 → 2.2.1 |
References
- https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2
- 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
- https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f
Status: profiled · ingested 2026-09-10T00:00:00.000Z