{"id":"CVE-2026-46681","sourceIdentifier":"security-advisories@github.com","published":"2026-07-21T15:16:35.177","lastModified":"2026-10-24T20:10:00.137","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the _copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys (__proto__, constructor, prototype). This allows an attacker to pollute the prototype chain of all objects in the application. Version 0.14.0 patches the issue."},{"lang":"es","value":"@nevware21/ts-utils es una completa biblioteca de utilidades de TypeScript/JavaScript. Antes de la versión 0.14.0, la función _copyProps en lib/src/object/copy.ts utiliza for...in para iterar sobre las propiedades del objeto de origen sin una comprobación de Object.hasOwnProperty, y no filtra claves peligrosas (__proto__, constructor, prototype). Esto permite a un atacante contaminar la cadena de prototipos de todos los objetos en la aplicación. La versión 0.14.0 soluciona el problema."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"nevware21","product":"ts-utils","versions":[{"version":"< 0.14.0","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/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":7.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"UNREPORTED","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":"2026-07-21T15:00:44.939446Z","id":"CVE-2026-46681","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-1321"}]}],"references":[{"url":"https://github.com/nevware21/ts-utils/commit/5e887f4e2fbee7160c8f501634c45e6a229e83bb","source":"security-advisories@github.com"},{"url":"https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43","source":"security-advisories@github.com"},{"url":"https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}