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🐍 PyPI

GHSA-pr46-2v3c-5356

HIGH

GHSA-pr46-2v3c-5356 is a high-severity (CVSS 7.5) Path Traversal vulnerability in emmett. O3 Security confirms whether GHSA-pr46-2v3c-5356 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Emmett has a path traversal in internal assets handler

Also known asCVE-2026-39847PYSEC-2026-59
Published
Apr 8, 2026
Updated
Jun 6, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐍emmett

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 RSGI static handler for Emmett's internal assets (/__emmett__ paths) is vulnerable to path traversal attacks.

An attacker can use ../ sequences (eg /__emmett__/../rsgi/handlers.py) to read arbitrary files outside the assets directory.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIemmett2.5.0&&< 2.8.12.8.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for emmett. 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 emmett to 2.8.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-pr46-2v3c-5356 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-pr46-2v3c-5356 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-pr46-2v3c-5356. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The RSGI static handler for Emmett's internal assets (`/__emmett__` paths) is vulnerable to path traversal attacks. An attacker can use `../` sequences (eg `/__emmett__/../rsgi/handlers.py`) to read arbitrary files outside the assets directory.
O3 Security · Impact-Aware SCA

Is GHSA-pr46-2v3c-5356 in your dependencies?

O3 detects GHSA-pr46-2v3c-5356 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.