CVE-2024-49767
HIGH7.5EPSS 1.1%Werkzeug possible resource exhaustion when parsing file data in forms
Published: 10/25/2024Modified: 5/20/2026
Description
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 packages (5)
- Alpine/py3-werkzeugfrom 0, < 3.0.6-r0
- Debian/python-werkzeugfrom 0, < 2.2.2-3+deb12u1
- Debian/quartfrom 0
- PyPI/quartfrom 0, < 0.20.0
- PyPI/werkzeug>= 2.0.0rc1, < 3.0.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | 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 |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-49767
- ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2024-49767
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2024-49767
- PATCHhttps://github.com/pallets/werkzeug
- WEBhttps://github.com/pallets/quart/commit/5e78c4169b8eb66b91ead3e62d44721b9e1644ee
- WEBhttps://github.com/pallets/quart/commit/abb04a512496206de279225340ed022852fbf51f
- WEBhttps://github.com/pallets/werkzeug/commit/50cfeebcb0727e18cc52ffbeb125f4a66551179b
- WEBhttps://github.com/pallets/werkzeug/commit/cbb446fdcada7685fce936ded01b76c08dbd6eb5
- WEBhttps://github.com/pallets/werkzeug/releases/tag/3.0.6
- WEBhttps://github.com/pallets/werkzeug/security/advisories/GHSA-q34m-jh98-gwm2
- WEBhttps://security.netapp.com/advisory/ntap-20250103-0007