{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77414","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-20T19:55:27.024Z","datePublished":"2026-08-21T20:51:43.500Z","dateUpdated":"2026-08-26T17:42:09.319Z"},"containers":{"cna":{"title":"JSONata: Arbitrary Code Execution via crafted JSONata expressions","problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"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","version":"4.0"}}],"references":[{"name":"https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f"},{"name":"https://github.com/jsonata-js/jsonata/pull/799","tags":["x_refsource_MISC"],"url":"https://github.com/jsonata-js/jsonata/pull/799"},{"name":"https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2","tags":["x_refsource_MISC"],"url":"https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2"},{"name":"https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8","tags":["x_refsource_MISC"],"url":"https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8"},{"name":"https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1","tags":["x_refsource_MISC"],"url":"https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1"}],"affected":[{"vendor":"jsonata-js","product":"jsonata","versions":[{"version":"< 1.8.8","status":"affected"},{"version":">= 2.0.0, < 2.2.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-21T20:51:43.500Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-2943-5xfg-gq5f","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-26T17:41:27.109059Z","id":"CVE-2026-77414","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-26T17:42:09.319Z"}}]}}