{"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": "2026-08-21T20:51:43.500Z"}, "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"}}}}

{}

{"affected": [{"affectedData": [{"product": "jsonata", "vendor": "jsonata-js", "versions": [{"status": "affected", "version": "< 1.8.8"}, {"status": "affected", "version": ">= 2.0.0, < 2.2.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-77414", "lastModified": "2026-08-21T21:17:07.410", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-21T21:17:07.410", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/commit/59e25144fc3b7125f6befd71b8a6e14e1fa610d2"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/pull/799"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/releases/tag/v1.8.8"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/releases/tag/v2.2.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/security/advisories/GHSA-2943-5xfg-gq5f"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.8.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0,2.2.1)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "jsonata", "source": "cna", "vendor": "jsonata-js"}, "product": "jsonata", "vendor": "jsonata-js"}], "created": "2026-08-21T22:45:04.446058+00:00", "updated": "2026-08-21T22:45:04.685282+00:00", "vendors": ["jsonata-js", "jsonata-js$PRODUCT$jsonata"]}