{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-68665",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-12-22T23:28:02.917Z",
        "datePublished": "2025-12-23T22:56:04.837Z",
        "dateUpdated": "2025-12-24T14:38:40.268Z"
    },
    "containers": {
        "cna": {
            "title": "LangChain serialization injection vulnerability enables secret extraction",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-502",
                            "lang": "en",
                            "description": "CWE-502: Deserialization of Untrusted Data",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 8.6,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6"
                },
                {
                    "name": "https://github.com/langchain-ai/langchainjs/commit/e5063f9c6e9989ea067dfdff39262b9e7b6aba62",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langchain-ai/langchainjs/commit/e5063f9c6e9989ea067dfdff39262b9e7b6aba62"
                },
                {
                    "name": "https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcore%401.1.8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcore%401.1.8"
                },
                {
                    "name": "https://github.com/langchain-ai/langchainjs/releases/tag/langchain%401.2.3",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/langchain-ai/langchainjs/releases/tag/langchain%401.2.3"
                }
            ],
            "affected": [
                {
                    "vendor": "langchain-ai",
                    "product": "langchainjs",
                    "versions": [
                        {
                            "version": "@langchain/core >= 1.0.0, < 1.1.8",
                            "status": "affected"
                        },
                        {
                            "version": "@langchain/core < 0.3.80",
                            "status": "affected"
                        },
                        {
                            "version": "langchain >= 1.0.0, < 1.2.3",
                            "status": "affected"
                        },
                        {
                            "version": "langchain < 0.3.37",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-12-23T22:56:04.837Z"
            },
            "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"
                }
            ],
            "source": {
                "advisory": "GHSA-r399-636x-v7f6",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-12-24T14:38:36.252592Z",
                                "id": "CVE-2025-68665",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-12-24T14:38:40.268Z"
                }
            }
        ]
    }
}