CVE-2021-45685: Columnar Project Columnar

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

An issue was discovered in the columnar crate through 2021-01-07 for Rust. ColumnarReadExt::read_typed_vec may read from uninitialized memory locations.

Affected products

• Columnar Project Columnar: up to and including 0.0.19

Published 2021-12-27. Last modified 2026-06-17.