{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-77415", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-20T19:55:27.024Z", "datePublished": "2026-08-21T21:01:09.203Z", "dateUpdated": "2026-08-21T21:01:09.203Z"}, "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-66mm-25pp-rfff", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/jsonata-js/jsonata/security/advisories/GHSA-66mm-25pp-rfff"}, {"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/pull/800", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/pull/800"}, {"name": "https://github.com/jsonata-js/jsonata/pull/802", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/pull/802"}, {"name": "https://github.com/jsonata-js/jsonata/commit/47c0e58542202c705726663166dbee5fcae47d06", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/commit/47c0e58542202c705726663166dbee5fcae47d06"}, {"name": "https://github.com/jsonata-js/jsonata/commit/4b217d514376e30cba278941298d7ba97c4a6c6e", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/commit/4b217d514376e30cba278941298d7ba97c4a6c6e"}, {"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/commit/f09df8416eab8ff44926fc6527c80fb8701de159", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/commit/f09df8416eab8ff44926fc6527c80fb8701de159"}, {"name": "https://github.com/jsonata-js/jsonata/commit/f174348c7fa30f271b63ddedf0767e814004bc4d", "tags": ["x_refsource_MISC"], "url": "https://github.com/jsonata-js/jsonata/commit/f174348c7fa30f271b63ddedf0767e814004bc4d"}, {"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": "2026-08-21T21:01:09.203Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-66mm-25pp-rfff", "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, 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."}], "id": "CVE-2026-77415", "lastModified": "2026-08-21T21:17:07.553", "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": "2026-08-21T21:17:07.553", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/commit/47c0e58542202c705726663166dbee5fcae47d06"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/commit/4b217d514376e30cba278941298d7ba97c4a6c6e"}, {"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/commit/f09df8416eab8ff44926fc6527c80fb8701de159"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/commit/f174348c7fa30f271b63ddedf0767e814004bc4d"}, {"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/pull/800"}, {"source": "security-advisories@github.com", "url": "https://github.com/jsonata-js/jsonata/pull/802"}, {"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-66mm-25pp-rfff"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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