{"id":"CVE-2026-77415","revision":"1f800a6a6eca4ffea88242528e5e56f5","records":[{"revision":"1f800a6a6eca4ffea88242528e5e56f5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-77415","aliases":[],"title":"JSONata: Arbitrary Code Execution via crafted JSONata expressions","description":"JSONata is a JSON query and transformation language. Prior to 1.8.8 and 2.2.1, crafted JSONata expressions could chain several object-integrity weaknesses to execute arbitrary code. The chain could overwrite $clone to mutate objects through evaluateTransformExpression, expose and deconstruct JSONata functions or lambdas through $merge.*, replace proc.arguments.forEach used by applyProcedure, and forge internal lambda state. These primitives allowed an attacker to reach prototype getters, prototype and constructor access, and process.getBuiltinModule with child_process, executing code with the privileges of the host process. This issue is fixed in versions 1.8.8 and 2.2.1.","state":0,"publishedAt":"2026-08-21T21:01:09.203+00:00","modifiedAt":"2026-08-25T16:55:27.467+00:00","affected":[{"ecosystem":"Vendor product","name":"jsonata","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"jsonata-js\",\n                    \"product\": \"jsonata\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.8.8\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 2.0.0, < 2.2.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"}],"references":["https://github.com/jsonata-js/jsonata/security/advisories/GHSA-66mm-25pp-rfff","https://github.com/jsonata-js/jsonata/pull/799","https://github.com/jsonata-js/jsonata/pull/800","https://github.com/jsonata-js/jsonata/pull/802","https://github.com/jsonata-js/jsonata/commit/47c0e58542202c705726663166dbee5fcae47d06","https://github.com/jsonata-js/jsonata/commit/4b217d514376e30cba278941298d7ba97c4a6c6e","https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2","https://github.com/jsonata-js/jsonata/commit/f09df8416eab8ff44926fc6527c80fb8701de159","https://github.com/jsonata-js/jsonata/commit/f174348c7fa30f271b63ddedf0767e814004bc4d","https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8","https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77415","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77415","identifiers":["CVE-2026-77415"]},"retained":false,"historicalAffected":[]}],"coverage":[]}