{"id":"CVE-2026-97724","state":"PUBLISHED","title":"A prototype pollution vulnerability in Software Mansion React Native Worklets before 0.12.2 allows an attacker-controlled object containing a __proto__ property to modify the proto","description":"A prototype pollution vulnerability in Software Mansion React Native Worklets before 0.12.2 allows an attacker-controlled object containing a __proto__ property to modify the prototype of an object created during serialization in clonePlainJSObject in packages/react-native-worklets/src/memory/serializable.native.ts. When affected data is subsequently processed by React Native Worklets, the malformed serialized object can cause the React Native application to crash. This can result in a remotely triggered denial of service in applications that pass attacker-controlled data through the affected serialization path. In applications where the attacker-controlled data is persisted, the denial of service may persist across application restarts or repeated attempts to access the affected content.","publishedAt":"2026-09-25T02:09:17.218Z","updatedAt":"2026-09-25T13:55:20.329Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/R:U/V:D/RE:L","source":"mitre"},"assigner":"mitre","products":["swmansion React Native Reanimated"],"affected":[{"vendor":"swmansion","product":"React Native Reanimated","packageURL":"pkg:npm/react-native-worklets","defaultStatus":"unaffected","versions":[{"version":"worklets-0.5.0","status":"affected","lessThan":"worklets-0.12.2","versionType":"custom"}],"modules":["react-native-worklets serialization"],"platforms":["Android","iOS"],"programFiles":["packages/react-native-worklets/src/memory/serializable.native.ts"],"programRoutines":[{"name":"clonePlainJSObject"}],"repo":"https://github.com/software-mansion/react-native-reanimated"}],"references":["https://github.com/software-mansion/react-native-reanimated/issues/10436","https://github.com/software-mansion/react-native-reanimated/pull/10451","https://github.com/software-mansion/react-native-reanimated/pull/10462","https://github.com/software-mansion/react-native-reanimated/releases/tag/worklets-0.12.2","https://docs.swmansion.com/react-native-reanimated/"],"weaknesses":["CWE-1321"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97724.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97724","state":"PUBLISHED","datePublished":"2026-09-25T02:09:17.218Z","dateUpdated":"2026-09-25T13:55:20.329Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-09-25T02:09:16.537Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A prototype pollution vulnerability in Software Mansion React Native Worklets before 0.12.2 allows an attacker-controlled object containing a __proto__ property to modify the prototype of an object created during serialization in clonePlainJSObject in packages/react-native-worklets/src/memory/serializable.native.ts. When affected data is subsequently processed by React Native Worklets, the malformed serialized object can cause the React Native application to crash. This can result in a remotely triggered denial of service in applications that pass attacker-controlled data through the affected serialization path. In applications where the attacker-controlled data is persisted, the denial of service may persist across application restarts or repeated attempts to access the affected content."}],"affected":[{"vendor":"swmansion","product":"React Native Reanimated","packageURL":"pkg:npm/react-native-worklets","defaultStatus":"unaffected","versions":[{"version":"worklets-0.5.0","status":"affected","lessThan":"worklets-0.12.2","versionType":"custom"}],"modules":["react-native-worklets serialization"],"platforms":["Android","iOS"],"programFiles":["packages/react-native-worklets/src/memory/serializable.native.ts"],"programRoutines":[{"name":"clonePlainJSObject"}],"repo":"https://github.com/software-mansion/react-native-reanimated"}],"references":[{"url":"https://github.com/software-mansion/react-native-reanimated/issues/10436"},{"url":"https://github.com/software-mansion/react-native-reanimated/pull/10451"},{"url":"https://github.com/software-mansion/react-native-reanimated/pull/10462"},{"url":"https://github.com/software-mansion/react-native-reanimated/releases/tag/worklets-0.12.2"},{"url":"https://docs.swmansion.com/react-native-reanimated/"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"USER","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"DIFFUSE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/R:U/V:D/RE:L","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"LOW"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1321","description":"CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-09-25T02:11:41.014Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"An application must pass attacker-controlled object data containing a \"__proto__\" property through the affected React Native Worklets serialization path."}],"value":"An application must pass attacker-controlled object data containing a \"__proto__\" property through the affected React Native Worklets serialization path."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Upgrade React Native Worklets to version 0.12.2 or later. Version 0.12.2 includes the upstream fix for unsafe handling of \"__proto__\" properties during serialization and deserialization."}],"value":"Upgrade React Native Worklets to version 0.12.2 or later. Version 0.12.2 includes the upstream fix for unsafe handling of \"__proto__\" properties during serialization and deserialization."}],"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Applications can recursively reject or remove prototype-sensitive properties such as \"__proto__\", \"constructor\", and \"prototype\" from untrusted objects before passing them to affected Worklets APIs."}],"value":"Applications can recursively reject or remove prototype-sensitive properties such as \"__proto__\", \"constructor\", and \"prototype\" from untrusted objects before passing them to affected Worklets APIs."}],"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:swmansion:react_native_reanimated:*:*:*:*:*:*:*:*","versionStartIncluding":"worklets-0.5.0","versionEndExcluding":"worklets-0.12.2"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/software-mansion/react-native-reanimated/issues/10436","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-25T13:54:55.193703Z","id":"CVE-2026-97724","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-25T13:55:20.329Z"}}]}}}