EUVD-2021-1600Published
hyper is an open-source HTTP library for Rust (crates.io). In hyper from version 0.12.0 and before versions 0.13.10 and 0.14.3 there is a vulnerability that can enable a request smuggling attack. The HTTP server code had a flaw that incorre…
Exact source revision recorded 1 Nov 2026 18:06:27 UTC. It does not establish the source's current position. Latest evidence.
Explicit identifiers and source references
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CVE-2021-21299 · Microsoft / collected KEV context
euvd · EUVD-2021-1600
- https://portswigger.net/research/http-desync-attacks-request-smuggling-reborn
- https://rustsec.org/advisories/RUSTSEC-2021-0020.html
- https://github.com/hyperium/hyper/security/advisories/GHSA-6hfq-h8hq-87mf
- https://crates.io/crates/hyper
- https://github.com/hyperium/hyper/commit/8f93123efef5c1361086688fe4f34c83c89cec02
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