CVE-2023-39631

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.

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.60% chance of exploitation in the next 30 days, 75th percentile

Published

2023-09-01

Updated

2024-10-01

Proof-of-concept exploits (2)

• langchain-ai/langchain/issues/8363147848★ · 2026-10-15
• pydata/numexpr/issues/4422545★ · 2026-10-13

Security advisories

• advisories/GHSA-f73w-4m7g-ch9x

References

• CVE Record
• NVD entry

Related

• CVE-2023-39659
• CVE-2026-14742