Python Multipart
by Kludex
Source repositories
CVEs (7)
| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2024-53981 | Hig | 0.42 | 7.5 | 0.01 | Dec 2, 2024 | python-multipart is a streaming multipart parser for Python. When parsing form data, python-multipart skips line breaks (CR \r or LF \n) in front of the first boundary and any tailing bytes after the last boundary. This happens one byte at a time and emits a log event each time,… | ||
| CVE-2026-53539 | hig | 0.38 | — | 0.00 | Jun 15, 2026 | ### Summary When parsing `application/x-www-form-urlencoded` bodies, `QuerystringParser` located the field separator with a two step lookup: it first scanned the entire remaining buffer for `&`, and only when no `&` existed anywhere ahead did it fall back to scanning for `;`.… | ||
| CVE-2026-53540 | low | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary `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… | ||
| CVE-2026-53538 | low | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary `QuerystringParser` treated `;` as a field separator in `application/x-www-form-urlencoded` bodies, in addition to `&`. The [WHATWG URL standard](https://url.spec.whatwg.org/#urlencoded-parsing), modern browsers, and Python's `urllib.parse` (since the CVE-2021-23336… | ||
| CVE-2026-53537 | low | 0.00 | — | 0.00 | Jun 15, 2026 | ### Summary `parse_options_header` parsed `Content-Disposition` (and `Content-Type`) headers with [`email.message.Message`](https://docs.python.org/3/library/email.compat32-message.html#email.message.Message), which transparently applies [RFC… | ||
| CVE-2026-24486 | 0.00 | — | 0.02 | Jan 27, 2026 | Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on… | |||
| CVE-2024-24762 | 0.00 | — | 0.02 | Feb 5, 2024 | `python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the… |
- risk 0.42cvss 7.5epss 0.01
python-multipart is a streaming multipart parser for Python. When parsing form data, python-multipart skips line breaks (CR \r or LF \n) in front of the first boundary and any tailing bytes after the last boundary. This happens one byte at a time and emits a log event each time,…
- risk 0.38cvss —epss 0.00
### Summary When parsing `application/x-www-form-urlencoded` bodies, `QuerystringParser` located the field separator with a two step lookup: it first scanned the entire remaining buffer for `&`, and only when no `&` existed anywhere ahead did it fall back to scanning for `;`.…
- risk 0.00cvss —epss 0.00
### Summary `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…
- risk 0.00cvss —epss 0.00
### Summary `QuerystringParser` treated `;` as a field separator in `application/x-www-form-urlencoded` bodies, in addition to `&`. The [WHATWG URL standard](https://url.spec.whatwg.org/#urlencoded-parsing), modern browsers, and Python's `urllib.parse` (since the CVE-2021-23336…
- risk 0.00cvss —epss 0.00
### Summary `parse_options_header` parsed `Content-Disposition` (and `Content-Type`) headers with [`email.message.Message`](https://docs.python.org/3/library/email.compat32-message.html#email.message.Message), which transparently applies [RFC…
- CVE-2026-24486Jan 27, 2026risk 0.00cvss —epss 0.02
Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on…
- CVE-2024-24762Feb 5, 2024risk 0.00cvss —epss 0.02
`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the…