CVE-2020-35914: Lock API Project Lock API

Medium severity, CVSS 4.7. EPSS: 0.2% chance of exploitation in the next 30 days.

An issue was discovered in the lock_api crate before 0.4.2 for Rust. A data race can occur because of RwLockWriteGuard unsoundness.

Affected products

• Lock API Project Lock API: before 0.4.2 (fixed in 0.4.2)

Published 2020-12-31. Last modified 2026-06-17.