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CVE-2026-97689 urllib3 is an HTTP client library for Python
Description
urllib3 is an HTTP client library for Python. From 1.10.3 until 2.8.0, the HTTPResponse.read_chunked and HTTPResponse.stream methods can allocate unbounded memory because the streaming chunk parser buffers the chunk-size field until newline or EOF without a length bound. The trigger is that a malicious server returns Transfer-Encoding: chunked followed by a very long run of bytes without a newline. The attack mechanism is that a malicious HTTP server sends a very long unterminated chunk-size line. The impact is that unbounded memory allocation can exhaust the client process. This issue is fixed in version 2.8.0.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| urllib3 1.10 | 1.10.3 → < 2.8.0 | 2.8.0 |
Références
- github.com github.com
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification