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🐍 PyPI

GHSA-qhx9-7hx7-cp4r

MEDIUM

GHSA-qhx9-7hx7-cp4r is a medium-severity (CVSS 6.8) CWE-444 vulnerability in bottle. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-qhx9-7hx7-cp4r is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

bottle HTTP Request smuggling

Also known asCVE-2020-28473PYSEC-2021-129SNYK-PYTHON-BOTTLE-1017108
Published
Apr 7, 2021
Updated
Sep 13, 2024
Affected
1 pkg
Patched
1 / 1
Exploits
1 known

Blast Radius

1 pkg affected
🐍bottle

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

Description

The package bottle before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIbottleall versions0.12.19
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for bottle. 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 bottle to 0.12.19 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qhx9-7hx7-cp4r 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-qhx9-7hx7-cp4r 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-qhx9-7hx7-cp4r. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The package bottle before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
O3 Security · Impact-Aware SCA

Is GHSA-qhx9-7hx7-cp4r in your dependencies?

O3 detects GHSA-qhx9-7hx7-cp4r across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.