Vulnerability CriticalRUSTSEC-2019-0034 · http
RUSTSEC-2019-0034: HeaderMap::Drain API is unsound
Short answerA security vulnerability in the http crate: HeaderMap::Drain API is unsound. Critical severity (CVSS 9.8). Fixed in 0.1.20: update to a fixed version.
| Crate | http |
|---|---|
| Type | Vulnerability (memory-corruption) |
| Affected versions | Before 0.1.20. |
| Fixed in | 0.1.20 |
| Severity | Critical, CVSS 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Published | 2019-11-16 |
| Last changed | 2023-11-08 |
| Also known as | CVE-2019-25009, GHSA-6rhx-hqxm-8p36 |
| Affected functions | http::header::HeaderMap::drain |
What to do
- See which version you have:
cargo tree -i http(it also shows which of your dependencies pulls it in). - Update within your version requirement:
cargo update -p http. If the fix is a newer major or minor than your requirement allows, raise it in Cargo.toml (for examplehttp = "0.1.20") or update the dependency that pulls it in. - Check again with
cargo audit, or paste your Cargo.lock into our Cargo.toml checker.
Details from the advisory
Affected versions of this crate incorrectly used raw pointer, which introduced unsoundness in its public safe API.
Failing to drop the Drain struct causes double-free, and it is possible to violate Rust's alias rule and cause data race with Drain's Iterator implementation.
The flaw was corrected in 0.1.20 release of http crate.
References
- Package: crates.io/crates/http
- Advisory: rustsec.org/advisories/RUSTSEC-2019-0034.html
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
Other advisories for http
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