{"id":"CVE-2026-77415","revision":"954402118e5d4663ba9823cf84be2842","records":[{"revision":"954402118e5d4663ba9823cf84be2842","observedAt":"2026-10-25T16:19:04.694+00:00","statement":{"source":"nvd","id":"CVE-2026-77415","aliases":[],"title":"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…","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":"2026-08-21T21:17:07.553+00:00","modifiedAt":"2026-10-12T16:10:00.22+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":9.3,"severity":"CRITICAL"}],"references":["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/pull/799","https://github.com/jsonata-js/jsonata/pull/800","https://github.com/jsonata-js/jsonata/pull/802","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-66mm-25pp-rfff"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77415","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-94"],"productCriteria":[],"sourceDates":{"published":"2026-08-21T21:17:07.553","lastModified":"2026-10-12T16:10:00.220"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-77415","identifiers":["CVE-2026-77415"]},"retained":false,"historicalAffected":[]}],"coverage":[]}