Palletsprojects vulnerabilitiesNone on the known-exploited list.

Vendor
The short answer

Palletsprojects has 20 published vulnerabilities across 4 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is Werkzeug, with 9. If you run Palletsprojects software, patch the exploited flaws first.

See the exploited flaws

We keep watching the known-exploited list.

Products

Which Palletsprojects products have the most vulnerabilities?

Werkzeug leads with 9 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

  1. Werkzeug9
  2. Jinja8
  3. Flask3
  4. Quart1
Published vulnerabilities
Known exploited

Which Palletsprojects vulnerabilities are being exploited?

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

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

Exploit likelihood

Which Palletsprojects 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. 3.9%

    The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service.

    CVSS7.5Published20 Aug 2018
  4. 3.5%

    This affects the package jinja2 from 0.0.0 and before 2.11.3.

    CVSS5.3Published1 Feb 2021
  5. 3.5%

    In Pallets Jinja before 2.10.1, str.format_map allows a sandbox escape.

    CVSS8.6Published7 Apr 2019
  6. 3.5%

    In Pallets Jinja before 2.8.1, str.format allows a sandbox escape.

    CVSS8.6Published8 Apr 2019
  7. 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
  8. 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
  9. 1.8%

    The Pallets Project Flask before 1.0 is affected by: unexpected memory usage.

    CVSS7.5Published17 Jul 2019
  10. 1.7%

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

    CVSS6.1Published18 Nov 2020
Every product

All Palletsprojects products we track.

4 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.

Precursor Intelligence

Running Palletsprojects? 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.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  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

Common questions, answered plainly.

Something else? Talk to the team →

Our catalogue lists 20 published vulnerabilities across 4 products and 256 versions from Palletsprojects.

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

Werkzeug, with 9 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the Palletsprojects products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.