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CRITICAL severity

GHSA-6rhx-hqxm-8p36

CRITICAL

GHSA-6rhx-hqxm-8p36 is a critical-severity (CVSS 9.8) CWE-415 vulnerability in http. O3 Security confirms whether GHSA-6rhx-hqxm-8p36 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Double free in http

Also known asCVE-2019-25009RUSTSEC-2019-0034
Published
Aug 25, 2021
Updated
Feb 4, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Feb 4, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🦀http

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

An issue was discovered in the http crate before 0.1.20 for Rust. The HeaderMap::Drain API can use a raw pointer, defeating soundness.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.iohttpall versions0.1.20

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for http. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update http to 0.1.20 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6rhx-hqxm-8p36 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-6rhx-hqxm-8p36 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-6rhx-hqxm-8p36. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

An issue was discovered in the http crate before 0.1.20 for Rust. The HeaderMap::Drain API can use a raw pointer, defeating soundness.
O3 Security · Impact-Aware SCA

Is GHSA-6rhx-hqxm-8p36 in your dependencies?

O3 detects GHSA-6rhx-hqxm-8p36 across crates.io dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-6rhx-hqxm-8p36: Double free in http… | O3 Security