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Critical

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.

  • Disclosed: 01.09.2023
  • Updated: 11.10.2026 12:20

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.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) langchain < 0.0.308 0.0.308
Python (PyPI) numexpr < 2.8.5 2.8.5

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Platform
Python (PyPI)
Package
langchain, numexpr
Disclosed
01.09.2023
Updated
11.10.2026 12:20

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2023-162 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-f73w-4m7g-ch9x - CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2023-163 - PyPA Advisory Database; CC BY 4.0

Vulnerability history: langchain

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (22) in the archive
Total entries
22
First → latest
04.2023 06.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 12
  • High 4
  • Medium 4
  • Low 2

Disclosures per year

Severity:
  1. LangSmith SDK: Public prompt pull deserializes untrusted manifests without trust boundary warning
    High · 7.1 CVE-2026-45134 < 0.3.30 0.3.30
  2. Langchain Server-Side Request Forgery vulnerability
    High · 7.5 CVE-2023-32786 < 0.0.329 0.0.329
  3. Langchain SQL Injection vulnerability
    Critical · 9.8 CVE-2023-32785 < 0.0.247 0.0.247
  4. LangChain before 0.0.317 allows SSRF via document_loaders/recursive_url_loader.py because crawling can proceed from an external server to an internal server.
    High · 8.8 CVE-2023-46229 < 0.0.317 0.0.317
  5. 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. this entry
    Critical · 9.8 CVE-2023-39631 < 0.0.308 0.0.308
  6. An issue in langchain v.0.0.171 allows a remote attacker to execute arbitrary code via the via the a json file to the load_prompt parameter.
    Critical · 9.8 CVE-2023-36281 < 0.0.171 0.0.171
  7. An issue in Harrison Chase langchain v.0.0.194 and before allows a remote attacker to execute arbitrary code via the from_math_prompt and from_colored_object_prompt functions.
    Critical · 9.8 CVE-2023-38896 < 0.0.195 0.0.195
  8. An issue in langchain langchain-ai v.0.0.232 and before allows a remote attacker to execute arbitrary code via a crafted script to the PythonAstREPLTool._run component.
    Critical · 9.8 CVE-2023-39659 < 0.0.233 0.0.233
  9. An issue in LangChain v.0.0.231 allows a remote attacker to execute arbitrary code via the prompt parameter.
    Critical · 9.8 CVE-2023-38860 < 0.0.247 0.0.247
  10. An issue in Harrison Chase langchain v.0.0.194 allows an attacker to execute arbitrary code via the python exec calls in the PALChain, affected functions include from_math_prompt and from_colored_obje
    Critical · 9.8 CVE-2023-36095 < 0.0.236 0.0.236
  11. SQL injection vulnerability in langchain v.0.0.64 allows a remote attacker to obtain sensitive information via the SQLDatabaseChain component.
    High · 7.5 CVE-2023-36189 < 0.0.247 0.0.247
  12. langchain vulnerable to arbitrary code execution
    Critical · 9.8 CVE-2023-36188 < 0.0.247 0.0.247
  13. An issue in langchain v.0.0.199 allows an attacker to execute arbitrary code via the PALChain in the python exec method.
    Critical · 9.8 CVE-2023-36258 < 0.0.247 0.0.247
  14. Langchain 0.0.171 is vulnerable to Arbitrary code execution in load_prompt.
    Critical · 9.8 CVE-2023-34541 < 0.0.247 0.0.247
  15. Langchain 0.0.171 is vulnerable to Arbitrary Code Execution.
    Critical · 9.8 CVE-2023-34540 < 0.0.225 0.0.225
  16. In LangChain through 0.0.131, the LLMMathChain chain allows prompt injection attacks that can execute arbitrary code via the Python exec method.
    Critical · 9.8 CVE-2023-29374 < 0.0.132 0.0.132

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