CVE-2024-49767 - Flask Werkzeug Multipart Form Data Denial of Service Vulnerability

CVE ID : CVE-2024-49767
Published : Oct. 25, 2024, 8:15 p.m. | 24 minutes ago
Description : Werkzeug is a Web Server Gateway Interface web application library. Applications using `werkzeug.formparser.MultiPartParser` corresponding to a version of Werkzeug prior to 3.0.6 to parse `multipart/form-data` requests (e.g. all flask applications) are vulnerable to a relatively simple but effective resource exhaustion (denial of service) attack. A specifically crafted form submission request can cause the parser to allocate and block 3 to 8 times the upload size in main memory. There is no upper limit; a single upload at 1 Gbit/s can exhaust 32 GB of RAM in less than 60 seconds. Werkzeug version 3.0.6 fixes this issue.
Severity: 0.0 | NA
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