3.7
Faible
CVE-2026-53538 Python-Multipart is a streaming multipart parser for Python
Description
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, QuerystringParser treated ; as a field separator in application/x-www-form-urlencoded bodies, in addition to &. The WHATWG URL standard, modern browsers, and Python's urllib.parse (since the CVE-2021-23336 fix) treat only & as a separator. This creates a parser differential: the same bytes are tokenized into different fields than a WHATWG compliant intermediary would produce, allowing an attacker to smuggle extra form fields past an upstream body inspecting component. This vulnerability is fixed in 0.0.30.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| python-multipart 0.0 | premières → < 0.0.30 | 0.0.30 |
Références
- github.com github.com
Chronologie
- Publiée
- Dernière modification
Autres CVE de python-multipart
Les 9 CVE de python-multipart →
CVE-2026-53540
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CVE-2026-53537
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CVE-2026-53539
Python-Multipart is a streaming multipart parser for Python
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CVE-2026-42561
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