CVE-2023-47248
Deserialization of untrusted data in IPC and Parquet readers in PyArrow versions 0.14.0 to 14.0.0 allows arbitrary code execution.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 14.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
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, we 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
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 14.53% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- apache/pyarrow
- Source
- security@apache.org
EPSS 14.5% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/apache/arrow/commit/f14170976372436ec1d03a724d8d3f3925484ecfPatch
- https://lists.apache.org/thread/yhy7tdfjf9hrl9vfrtzo8p2cyjq87v7nMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FR34AIPXVTMB3XPRU5ULV5HHWPMRE33X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MAGWEAJDWO2ACYATUQCPXLSYY5C3L3XU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWFYXLVBTBHNKYRXI572RFX7IJDDQGBL/
- https://pypi.org/project/pyarrow-hotfix/Product
- https://github.com/apache/arrow/commit/f14170976372436ec1d03a724d8d3f3925484ecfPatch
- https://lists.apache.org/thread/yhy7tdfjf9hrl9vfrtzo8p2cyjq87v7nMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FR34AIPXVTMB3XPRU5ULV5HHWPMRE33X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MAGWEAJDWO2ACYATUQCPXLSYY5C3L3XU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWFYXLVBTBHNKYRXI572RFX7IJDDQGBL/
- https://pypi.org/project/pyarrow-hotfix/Product
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.