Description
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.31, parse_form() did not validate the Content-Length header before using it to bound its chunked read of the request body. A negative Content-Length turned the bounded read into a read-until-EOF, so the entire body was loaded into memory in a single read instead of in fixed-size chunks. This vulnerability is fixed in 0.0.31.
Severity (CVSS)
| Base score | 3.7 |
|---|---|
| Severity | Low |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Provided by | CNA |
Weaknesses
- CWE-1284 — CWE-1284: Improper Validation of Specified Quantity in Input
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Kludex | python-multipart | < 0.0.31 |
References
- https://github.com/Kludex/python-multipart/security/advisories/GHSA-v9pg-7xvm-68hf (x_refsource_CONFIRM)
Generated from the official CVE List on 23 Jun 2026 10:05 UTC.