CVE-2024-27444

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-26 · updated 2026-06-17
Weakness: CWE-749

Description

langchain_experimental (aka LangChain Experimental) in LangChain before 0.1.8 allows an attacker to bypass the CVE-2023-44467 fix and execute arbitrary code via the __import__, __subclasses__, __builtins__, __globals__, __getattribute__, __bases__, __mro__, or __base__ attribute in Python code. These are not prohibited by pal_chain/base.py.

Affected products

langchain-experimental: before 0.1.8 — fixed in 0.1.8

How to fix

Upgrade to a fixed version: langchain-experimental 0.1.8. Check the vendor advisory for mitigations.

References

https://github.com/langchain-ai/langchain/commit/de9a6cdf163ed00adaf2e559203ed0a9ca2f1de7
https://github.com/langchain-ai/langchain/commit/de9a6cdf163ed00adaf2e559203ed0a9ca2f1de7

Get alerted when CVE-2024-27444 or the next vulnerability affects your stack