CVE-2023-39631: Langchain vulnerable to arbitrary code execution via the evaluate function in the numexpr library
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. Patches: Released in v.0.0.308. numexpr dependency is optional for langchain.
Published Sep 1, 2023 · Updated Feb 20, 2025
Affected packages
langchain
- Ecosystem
- PyPI
- Affected
- < 0.0.308
- Fixed in
- 0.0.308
- Check
pip show langchain
numexpr
- Ecosystem
- PyPI
- Affected
- < 2.8.5
- Fixed in
- 2.8.5
- Check
pip show numexpr
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
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.
Patches: Released in v.0.0.308. numexpr dependency is optional for langchain.
Credited to eyurtsev.
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-39631
- https://github.com/langchain-ai/langchain/issues/8363
- https://github.com/pydata/numexpr/issues/442
- https://github.com/pypa/advisory-database/tree/main/vulns/langchain/PYSEC-2023-162.yaml
- https://github.com/pypa/advisory-database/tree/main/vulns/numexpr/PYSEC-2023-163.yaml
- https://github.com/langchain-ai/langchain/pull/11302
- https://github.com/langchain-ai/langchain/releases/tag/v0.0.308
- https://github.com/pydata/numexpr/commit/4b2d89cf14e75030d27629925b9998e1e91d23c7
- https://github.com/advisories/GHSA-f73w-4m7g-ch9x
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology
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