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Vulnerability record · CVE-2019-12408 · published 8 November 2019

CVE-2019-12408: Apache arrow vulnerability

Apache · Arrow

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 had a uninitialized memory bug when building arrays with null values in some cases. This can lead to uninitialized memory being unintentionally shared if Arrow Arrays are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.

7.5 CVSS 3.1 High EPSS 3.3% · top 12.1% CWE-909 · CWE-909
7.5CVSS 3.1 base score, v2 5.0
3.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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 had a uninitialized memory bug when building arrays with null values in some cases. This can lead to uninitialized memory being unintentionally shared if Arrow Arrays are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269%40%3Cdev.arrow.apache.org%
https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073%40%3Cannounce.apache.org%3
https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269%40%3Cdev.arrow.apache.org%
https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073%40%3Cannounce.apache.org%3

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-52338Apache arrow deserialization of untrusted data vulnerabilityDeserialization 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 execut…EPSS 2.3%7.5CVE-2024-41178Apache arrow sensitive information in log file vulnerabilityExposure of temporary credentials in logs in Apache Arrow Rust Object Store (`object_store` crate), version 0.10.1 and earlier on all platforms using…EPSS 0.71%7.5CVE-2019-12410Apache arrow vulnerabilityWhile investigating UBSAN errors in https://github.com/apache/arrow/pull/5365 it was discovered Apache Arrow versions 0.12.0 to 0.14.1, left memory A…EPSS 4.6%7.0CVE-2026-25087Apache arrow use after free vulnerabilityUse After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an…EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2019-12408), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.