{"cve":"CVE-2019-12408","nvd":{"published":"2019-11-08T19:15:10.237","modified":"2026-06-17T02:14:35.707","status":"Modified","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-909"],"references":["https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269%40%3Cdev.arrow.apache.org%3E","https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073%40%3Cannounce.apache.org%3E","https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269%40%3Cdev.arrow.apache.org%3E","https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073%40%3Cannounce.apache.org%3E"],"products":["apache:arrow"],"source":"nvd","synced_at":"2026-10-19T20:59:25.448946135+00:00"},"epss":{"cve":"CVE-2019-12408","score":0.03251,"percentile":0.88336,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8cw2-jv5c-c825","url":"https://osv.dev/vulnerability/GHSA-8cw2-jv5c-c825","summary":"Missing Initialization of Resource in Apache Arrow","modified":"2024-10-21T21:26:52.318112Z","packages":[{"ecosystem":"PyPI","name":"pyarrow","purl":"pkg:pypi/pyarrow","ranges":[">=0.14.0 <0.15.1"],"fixed":["0.15.1"]},{"ecosystem":"RubyGems","name":"red-arrow","purl":"pkg:gem/red-arrow","ranges":[">=0.14.0 <0.15.1"],"fixed":["0.15.1"]}]},{"id":"PYSEC-2019-195","url":"https://osv.dev/vulnerability/PYSEC-2019-195","summary":"","modified":"2026-06-10T17:01:39.667400278Z","packages":[{"ecosystem":"PyPI","name":"pyarrow","purl":"pkg:pypi/pyarrow","ranges":[">=0.14.0 <0.15.0"],"fixed":["0.15.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}