CVE-2023-39631

CRITICAL

langchain - Remote Code Execution via Numexpr Evaluate Function

Title source: llm
STIX 2.1

Description

An issue in LanChain-ai Langchain v.0.0.245 allows a remote attacker to execute arbitrary code via the evaluate function in the numexpr library.

References (2)

Core 2
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/langchain-ai/langchain/issues/8363
Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/pydata/numexpr/issues/442

Scores

CVSS v3 9.8
EPSS 0.0132
EPSS Percentile 67.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-94
Status published
Products (3)
langchain/langchain 0.0.245
pypi/langchain 0 - 0.0.308PyPI
pypi/numexpr 0 - 2.8.5PyPI
Published Sep 01, 2023
Tracked Since Feb 18, 2026