CVE-2025-68664
CVSS v3
8.2
HIGH
Score EPSS
42.9 %
probabilité d’exploitation au 2026-10-05
CISA KEV
Non
exploitation connue
Exploitation
—
statut SSVC
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.
Détails techniques
- Publiée le
- 2025-12-23
- Exploit-DB
- EDB-52514
Questions fréquentes
Qu’est-ce que CVE-2025-68664 ?
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.
CVE-2025-68664 est-elle activement exploitée ?
Aucune exploitation active de CVE-2025-68664 n’est confirmée. Son score EPSS était de 42.9 % au 2026-10-05, soit la probabilité estimée d’exploitation dans les 30 prochains jours.
Quel est le score CVSS de CVE-2025-68664 ?
CVE-2025-68664 a un score de base CVSS v3 de 8.2 (gravité HIGH).
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