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Apache ArrowGHSA-5wvp-7f3h-6wmm

PyArrow: Arbitrary code execution when loading a malicious data file

Critical9.8CVE-2023-47248 · Published Nov 9, 2023 · updated Sep 10, 2026

GitHub advisory

Affected versions

PackageAffectedFixed in
pyarrow
PyPI
>= 0.14.0, < 14.0.114.0.1
Details and references

Deserialization of untrusted data in IPC and Parquet readers in PyArrow versions 0.14.0 to 14.0.0 allows arbitrary code execution. An application is vulnerable if it reads Arrow IPC, Feather or Parquet data from untrusted sources (for example user-supplied input files). This vulnerability only affects PyArrow, not other Apache Arrow implementations or bindings. It is recommended that users of PyArrow upgrade to 14.0.1. Similarly, it is recommended that downstream libraries upgrade their dependency requirements to PyArrow 14.0.1 or later. PyPI packages are already available, and we hope that conda-forge packages will be available soon. If it is not possible to upgrade, maintainers provide a separate package `pyarrow-hotfix` that disables the vulnerability on older PyArrow versions. See https://pypi.org/project/pyarrow-hotfix/ for instructions.

CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity from
GitHub (reviewed advisory)
Weakness
CWE-502
Also known as
CVE-2023-47248, PYSEC-2023-238

More Apache Arrow advisories

All Apache Arrow
DateAdvisory
Nov 282024Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package versions 4.0.0 through 16.1.0 allows arbitrary code execution. An application is vulnerable if it
CVE-2024-52338Critical9.8fixed in 17.0.0
May 242022Missing Initialization of Resource in Apache Arrow
CVE-2019-12408High7.5fixed in 0.15.1
May 242022Missing Initialization of Resource in Apache Arrow
CVE-2019-12410High7.5fixed in 0.15.1
Feb 17Apache Arrow: Potential use-after-free when reading IPC file with pre-buffering
CVE-2026-25087High7.0fixed in 23.0.1

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