Werkzeug vulnerabilitiesRanked by how likely they are to be used.

Product94 versions
The short answer

Werkzeug is made by Palletsprojects. We track 9 published vulnerabilities in it, across 94 versions. None of them is on the list of flaws known to be exploited today. If you run Werkzeug, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Werkzeug vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Werkzeug's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Werkzeug flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 56%

    In Pallets Werkzeug before 0.15.5, SharedDataMiddleware mishandles drive names (such as C:) in Windows pathnames.

    CVSS7.5Published28 Jul 2019
  2. 8.1%

    Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body.

    CVSS9.8Published25 May 2022
  3. 2.0%

    Cross-site scripting (XSS) vulnerability in the render_full function in debug/tbtools.py in the debugger in Pallets Werkzeug before 0.11.11 (as used in Pallets Flask and other products) allows remote attackers to...

    CVSS6.1Published23 Oct 2017
  4. 1.9%

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

    CVSS7.5Published9 Aug 2019
  5. 1.7%

    Open redirect vulnerability in werkzeug before 0.11.6 via a double slash in the URL.

    CVSS6.1Published18 Nov 2020
  6. 1.4%

    Werkzeug is a comprehensive WSGI web application library.

    CVSS7.5Published14 Feb 2023
  7. 1.1%

    Werkzeug is a Web Server Gateway Interface web application library.

    CVSS6.9Published25 Oct 2024
  8. 1.1%

    Werkzeug is a comprehensive WSGI web application library.

    CVSS7.5Published25 Oct 2023
  9. 0.5%

    Werkzeug is a comprehensive WSGI web application library.

    CVSS3.5Published14 Feb 2023
Precursor Intelligence

Running Werkzeug? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.

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FAQ

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We track 9 published vulnerabilities listed under the name Werkzeug, across 94 versions.

None of Werkzeug's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Werkzeug. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.