What’s Vulnerable › Vulnerabilities

CVE-2020-36202

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-26 · updated 2026-06-17
• Weakness: CWE-79

Description

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

• http-rs async-h1: before 2.3.0 — fixed in 2.3.0

How to fix

Upgrade to a fixed version: http-rs async-h1 2.3.0. Check the vendor advisory for mitigations.

References

• https://rustsec.org/advisories/RUSTSEC-2020-0093.html
• https://rustsec.org/advisories/RUSTSEC-2020-0093.html

Get alerted when CVE-2020-36202 or the next vulnerability affects your stack