# CVE-2019-14806: Pallets Werkzeug Insufficient Entropy

Source: https://junglewise.ai/threats/cve-2019-14806-pallets-werkzeug-insufficient-entropy  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-08-09  
License: CC BY 4.0 with a link back

CVE-2019-14806 · Severity: low · CVSS 3.1 · Published 2019-08-09

Pallets Werkzeug before 0.15.3, when used with Docker, has insufficient debugger PIN randomness because Docker containers share the same machine id.

Technologies: [werkzeug (PyPI)](https://junglewise.ai/threats/technologies/werkzeug). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2019-14806 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2019-14806 being exploited in the wild.

**How severe is CVE-2019-14806?** Low severity, with a CVSS score of 3.1, published 9 August 2019.

**Which products and versions are affected?** werkzeug (PyPI) ECOSYSTEM:introduced=0,fixed=0.15.3, GIT:introduced=0,fixed=00bc43b1672e662e5e3b8cecd79e67fc968fa246|ECOSYSTEM:introduced=0,fixed=0.15.3.

**Is there a fix for CVE-2019-14806?** Yes. werkzeug (PyPI): upgrade to 0.15.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2019-14806?** Check whether you run werkzeug (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- werkzeug (PyPI): upgrade to 0.15.3 or later

  ```sh
  pip install "werkzeug>=0.15.3"
  ```


## Affected products

- werkzeug (PyPI) ECOSYSTEM:introduced=0,fixed=0.15.3, GIT:introduced=0,fixed=00bc43b1672e662e5e3b8cecd79e67fc968fa246|ECOSYSTEM:introduced=0,fixed=0.15.3

## Identifiers

- CVE-2019-14806
- GHSA-gq9m-qvpx-68hc
- PYSEC-2019-140

## Related threats

- [Werkzeug path traversal via NUL device with NTFS ADS marker](https://junglewise.ai/threats/cve-2026-102598-werkzeug-is-a-comprehensive-wsgi-web-application-library-prior)
- [PYSEC-2026-2044 - Werkzeug safe_join() allows Windows special device names with compound extensions](https://junglewise.ai/threats/cve-2026-21860-werkzeug-safe-join-allows-windows-special-device-names-with)
- [PYSEC-2026-2045 - Werkzeug safe_join not safe on Windows](https://junglewise.ai/threats/cve-2024-49766-werkzeug-safe-join-not-safe-on-windows)
- [PYSEC-2026-2043 - Werkzeug debugger vulnerable to remote execution when interacting with attacker controlled domain](https://junglewise.ai/threats/cve-2024-34069-werkzeug-debugger-remote-code-execution-via-attacker-controlled)
- [PYSEC-2026-1065 - Pallets Werkzeug vulnerable to Path Traversal](https://junglewise.ai/threats/cve-2019-14322-pallets-werkzeug-vulnerable-to-path-traversal)