CVE-2025-68664
Last modified
CVE-2025-68664 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. EPSS estimates a 13.83% chance of exploitation in the next 30 days.
Description
LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. 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 versions 0.3.81 and 1.2.5.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Langchain | Langchain Core | < 0.3.81 |
| Langchain | Langchain Core | >= 1.0.0, < 1.2.5 |
References
- https://github.com/langchain-ai/langchain/pull/34455Issue Tracking, Patch
- https://github.com/langchain-ai/langchain/pull/34458Issue Tracking, Patch
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-c67j-w6g6-q2cmExploit, Vendor Advisory
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-c67j-w6g6-q2cmExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-68664?
How severe is CVE-2025-68664?
How do I fix CVE-2025-68664?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-68658Open Source Point of Sale (opensourcepos) is a web based poi…4.8
- CVE-2025-68659Discourse is an open source discussion platform. Versions pr…5.3
- CVE-2025-6866A vulnerability has been found in code-projects Simple Forum…4.3
- CVE-2025-68660Discourse is an open source discussion platform. In versions…5.4
- CVE-2025-68662Discourse is an open source discussion platform. In versions…9.9
- CVE-2025-68663Outline is a service that allows for collaborative documenta…5.3
- CVE-2025-68665LangChain is a framework for building LLM-powered applicatio…9.1
- CVE-2025-68666Discourse is an open source discussion platform. In versions…6.5
- CVE-2025-68667Conduit is a chat server powered by Matrix. A vulnerability …9.9
- CVE-2025-68668n8n is an open source workflow automation platform. From ver…9.9
- CVE-2025-686695ire is a cross-platform desktop artificial intelligence ass…9.6
- CVE-2025-6867A vulnerability was found in SourceCodester Simple Company W…7.2
Are you affected by CVE-2025-68664?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST