{"id":"CVE-2026-77415","sourceIdentifier":"security-advisories@github.com","published":"2026-08-21T21:17:07.553","lastModified":"2026-10-12T16:10:00.220","vulnStatus":"Deferred","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."},{"lang":"es","value":"JSONata es un lenguaje de consulta y transformación de JSON. Antes de las versiones 1.8.8 y 2.2.1, expresiones JSONata elaboradas podrían encadenar varias debilidades de integridad de objetos para ejecutar código arbitrario. La cadena podría sobrescribir $clone para mutar objetos a través de evaluateTransformExpression, exponer y deconstruir funciones o lambdas de JSONata a través de $merge.*, reemplazar proc.arguments.forEach utilizado por applyProcedure, y forjar el estado interno de la lambda. Estos primitivos permitieron a un atacante alcanzar getters de prototipo, acceso a prototipos y constructores, y process.getBuiltinModule con child_process, ejecutando código con los privilegios del proceso anfitrión. Este problema está corregido en las versiones 1.8.8 y 2.2.1."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"jsonata-js","product":"jsonata","versions":[{"version":"< 1.8.8","status":"affected"},{"version":">= 2.0.0, < 2.2.1","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","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","baseScore":9.3,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-25T16:53:35.738767Z","id":"CVE-2026-77415","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-94"}]}],"references":[{"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","source":"security-advisories@github.com"},{"url":"https://github.com/jsonata-js/jsonata/security/advisories/GHSA-66mm-25pp-rfff","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}