Search criteria
2 vulnerabilities found for langchainjs by langchain-ai
CVE-2025-68665 (GCVE-0-2025-68665)
Vulnerability from nvd – Published: 2025-12-23 22:56 – Updated: 2025-12-24 14:38
VLAI?
Title
LangChain serialization injection vulnerability enables secret extraction
Summary
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
Severity ?
8.6 (High)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| langchain-ai | langchainjs |
Affected:
@langchain/core >= 1.0.0, < 1.1.8
Affected: @langchain/core < 0.3.80 Affected: langchain >= 1.0.0, < 1.2.3 Affected: langchain < 0.3.37 |
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CVE-2025-68665 (GCVE-0-2025-68665)
Vulnerability from cvelistv5 – Published: 2025-12-23 22:56 – Updated: 2025-12-24 14:38
VLAI?
Title
LangChain serialization injection vulnerability enables secret extraction
Summary
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
Severity ?
8.6 (High)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| langchain-ai | langchainjs |
Affected:
@langchain/core >= 1.0.0, < 1.1.8
Affected: @langchain/core < 0.3.80 Affected: langchain >= 1.0.0, < 1.2.3 Affected: langchain < 0.3.37 |
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