{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T15:25:48.558","vulnerabilities":[{"cve":{"id":"CVE-2025-68665","sourceIdentifier":"security-advisories@github.com","published":"2025-12-23T23:15:45.097","lastModified":"2026-01-13T16:17:22.673","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS's toJSON() method (and subsequently when string-ifying objects using JSON.stringify(). The method did not escape objects with 'lc' keys when serializing free-form data in kwargs. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in @langchain/core versions 0.3.80 and 1.1.8, and langchain versions 0.3.37 and 1.2.3"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":5.2}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-502"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:langchain:langchain.js:*:*:*:*:*:*:*:*","versionEndExcluding":"0.3.37","matchCriteriaId":"79F6F9C9-7927-4C72-9F8F-63186F6D59A2"},{"vulnerable":true,"criteria":"cpe:2.3:a:langchain:langchain.js:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.2.3","matchCriteriaId":"32341D52-B3FD-484F-940F-CB8EB24CFB43"},{"vulnerable":true,"criteria":"cpe:2.3:a:langchain:langchain\\/core:*:*:*:*:*:node.js:*:*","versionEndExcluding":"0.3.80","matchCriteriaId":"7D44DA1A-0433-4A46-8E85-D8363F1E5C99"},{"vulnerable":true,"criteria":"cpe:2.3:a:langchain:langchain\\/core:*:*:*:*:*:node.js:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.1.8","matchCriteriaId":"CECC1942-DCA4-42B5-B9C1-E2F420B27D9A"}]}]}],"references":[{"url":"https://github.com/langchain-ai/langchainjs/commit/e5063f9c6e9989ea067dfdff39262b9e7b6aba62","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcore%401.1.8","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/langchain-ai/langchainjs/releases/tag/langchain%401.2.3","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6","source":"security-advisories@github.com","tags":["Vendor Advisory"]},{"url":"https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Vendor Advisory"]}]}}]}