Critical severity9.8NVD Advisory· Published Dec 31, 2020· Updated Jun 17, 2026
CVE-2020-35863
CVE-2020-35863
Description
An issue was discovered in the hyper crate before 0.12.34 for Rust. HTTP request smuggling can occur. Remote code execution can occur in certain situations with an HTTP server on the loopback interface.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
hypercrates.io | >= 0.11.0, < 0.12.34 | 0.12.34 |
Affected products
3- Rust/hyperdescription
Patches
Vulnerability mechanics
References
4- rustsec.org/advisories/RUSTSEC-2020-0008.htmlnvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-h3qr-rq2j-74w4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-35863ghsaADVISORY
- github.com/hyperium/hyper/issues/1925ghsaWEB
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