# pyarrow (PyPI) vulnerabilities

5 known vulnerabilities (2 critical, 1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 108.3M
- Dependents: 18.5K
- Registry: https://pypi.org/project/pyarrow/

## Advisories (5)

### [CVE-2026-25087](https://cve.now/CVE-2026-25087): Apache Arrow: Potential use-after-free when reading IPC file with pre-buffering

- Severity: High 7.0
- Published: Feb 17, 2026
- Affected: from 15.0.0, fixed in 23.0.1.

### [CVE-2024-52338](https://cve.now/CVE-2024-52338): Apache Arrow R package: Arbitrary code execution when loading a malicious data file

- Severity: Critical 9.8
- Published: Nov 28, 2024
- Affected: from 4.0.0, fixed in 17.0.0.

### [CVE-2023-47248](https://cve.now/CVE-2023-47248): PyArrow, PyArrow: Arbitrary code execution when loading a malicious data file

- Severity: Critical
- Published: Nov 9, 2023
- Affected: from 0.14.0, through 14.0.0; from 0.14.0, fixed in 14.0.1.

### [CVE-2019-12408](https://cve.now/CVE-2019-12408): It was discovered that the C++ implementation (which underlies the R, Python and Ruby implementations) of Apache Arrow 0.14.0 to 0.14.1…

- Severity: Unrated
- Published: Nov 8, 2019
- Affected: from 0.14.0, fixed in 0.15.0; from 0.14.0, fixed in 0.15.1.

### [CVE-2019-12410](https://cve.now/CVE-2019-12410): While investigating UBSAN errors in https://github.com/apache/arrow/pull/5365 it was discovered Apache Arrow versions 0.12.0 to 0.14.1…

- Severity: Unrated
- Published: Nov 8, 2019
- Affected: from 0.12.0, fixed in 0.15.1; from 0.12.0, fixed in 0.15.0.

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