CVE-2020-36202: Async-h1 request smuggling possible with long unread bodies
6.1
CVSS Score
3.1
Basic Information
CVE ID
GHSA ID
EPSS Score
0.55695%
CWE
Published
5/24/2022
Updated
1/27/2023
KEV Status
No
Technology
Rust
Technical Details
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
async-h1 | rust | < 2.3.0 | 2.3.0 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The RustSec advisory explicitly lists both functions in its 'Affected Functions' section for versions <2.3.0. The vulnerability stems from incomplete body consumption before processing subsequent requests, which would occur in these core request handling functions. The release notes confirm decode() had breaking changes to fix the issue, while accept() remained the primary API entrypoint. Both functions are directly involved in request processing and would be responsible for proper body consumption.