LangChain serialization injection vulnerability enables secret extraction
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
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| langchain-ai | langchainjs | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
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| Langchain-ai | Langchainjs | — |
| Source | ID | Title |
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Github GHSA |
GHSA-r399-636x-v7f6 | LangChain serialization injection vulnerability enables secret extraction |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.793% probability within 30 days)
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Langchain
Langchain langchain.js Langchain langchain\/core |
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| CPEs | cpe:2.3:a:langchain:langchain.js:*:*:*:*:*:*:*:* cpe:2.3:a:langchain:langchain\/core:*:*:*:*:*:node.js:*:* |
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| Vendors & Products |
Langchain
Langchain langchain.js Langchain langchain\/core |
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threat_severity
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threat_severity
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ssvc
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Langchain-ai
Langchain-ai langchainjs |
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| Vendors & Products |
Langchain-ai
Langchain-ai langchainjs |
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| Description | 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 | |
| Title | LangChain serialization injection vulnerability enables secret extraction | |
| Weaknesses | CWE-502 | |
| References |
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| Metrics |
cvssV3_1
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