CVE-2021-29940: Through Project Through

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

An issue was discovered in the through crate through 2021-02-18 for Rust. There is a double free (in through and through_and) upon a panic of the map function.

Affected products

• Through Project Through: up to and including 2021-02-18

Published 2021-04-01. Last modified 2026-06-17.