id: PYSEC-2026-3417
published: "2026-07-13T14:36:32.817473Z"
modified: "2026-07-13T16:07:32.296477Z"
aliases:
- CVE-2024-49767
- GHSA-q34m-jh98-gwm2
summary: Werkzeug possible resource exhaustion when parsing file data in forms
details: |-
  Applications using Werkzeug to parse `multipart/form-data` requests are vulnerable to resource exhaustion. A specially crafted form body can bypass the `Request.max_form_memory_size` setting.
  
  
  The `Request.max_content_length` setting, as well as resource limits provided by deployment software and platforms, are also available to limit the resources used during a request. This vulnerability does not affect those settings. All three types of limits should be considered and set appropriately when deploying an application.
affected:
- package:
    name: werkzeug
    ecosystem: PyPI
    purl: pkg:pypi/werkzeug
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: 2.0.0rc1
    - fixed: 3.0.6
  versions:
  - 2.0.0
  - 2.0.0rc1
  - 2.0.0rc2
  - 2.0.0rc3
  - 2.0.0rc4
  - 2.0.0rc5
  - 2.0.1
  - 2.0.2
  - 2.0.3
  - 2.1.0
  - 2.1.1
  - 2.1.2
  - 2.2.0
  - 2.2.0a1
  - 2.2.1
  - 2.2.2
  - 2.2.3
  - 2.3.0
  - 2.3.1
  - 2.3.2
  - 2.3.3
  - 2.3.4
  - 2.3.5
  - 2.3.6
  - 2.3.7
  - 2.3.8
  - 3.0.0
  - 3.0.1
  - 3.0.2
  - 3.0.3
  - 3.0.4
  - 3.0.5
references:
- type: WEB
  url: https://github.com/pallets/werkzeug/security/advisories/GHSA-q34m-jh98-gwm2
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2024-49767
- type: WEB
  url: https://github.com/pallets/quart/commit/5e78c4169b8eb66b91ead3e62d44721b9e1644ee
- type: WEB
  url: https://github.com/pallets/quart/commit/abb04a512496206de279225340ed022852fbf51f
- type: WEB
  url: https://github.com/pallets/werkzeug/commit/50cfeebcb0727e18cc52ffbeb125f4a66551179b
- type: WEB
  url: https://github.com/pallets/werkzeug/commit/cbb446fdcada7685fce936ded01b76c08dbd6eb5
- type: PACKAGE
  url: https://github.com/pallets/werkzeug
- type: WEB
  url: https://github.com/pallets/werkzeug/releases/tag/3.0.6
- type: WEB
  url: https://security.netapp.com/advisory/ntap-20250103-0007
- type: PACKAGE
  url: https://pypi.org/project/werkzeug
- type: ADVISORY
  url: https://github.com/advisories/GHSA-q34m-jh98-gwm2
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- type: CVSS_V4
  score: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N