PYSEC-2026-375

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/langchain-experimental/PYSEC-2026-375.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-375
Aliases
Published
2026-06-29T11:50:40.435355Z
Modified
2026-07-01T20:22:55.398529Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
LangChain Experimental vulnerable to arbitrary code execution
Details

langchain_experimental (aka LangChain Experimental) before 0.0.52, part of 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.

References

Affected packages

PyPI / langchain-experimental

Package

Name
langchain-experimental
View open source insights on deps.dev
Purl
pkg:pypi/langchain-experimental

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.0.52

Affected versions

0.*
0.0.1rc1
0.0.1rc2
0.0.1rc3
0.0.1rc4
0.0.1
0.0.2
0.0.3
0.0.4
0.0.5
0.0.6
0.0.7
0.0.8
0.0.9
0.0.10
0.0.11
0.0.12
0.0.13
0.0.14
0.0.15
0.0.16
0.0.17
0.0.18
0.0.19
0.0.20
0.0.21
0.0.22
0.0.23
0.0.24
0.0.25
0.0.27
0.0.28
0.0.29
0.0.30
0.0.31
0.0.32
0.0.33
0.0.34
0.0.35
0.0.36
0.0.37
0.0.38
0.0.39
0.0.40
0.0.41
0.0.42
0.0.43
0.0.44
0.0.45
0.0.46
0.0.47
0.0.48
0.0.49
0.0.50
0.0.51

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/langchain-experimental/PYSEC-2026-375.yaml"