CVE-2020-36202: Rust-Lang Async-h1

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in the async-h1 crate before 2.3.0 for Rust. Request smuggling can occur when used behind a reverse proxy.

Affected products

• Rust-Lang Async-h1: before 2.3.0 (fixed in 2.3.0)

Published 2021-01-26. Last modified 2026-06-17.