Eventlet is a concurrent networking library for Python. Prior to version 0.40.3, the Eventlet WSGI parser is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer sections. This vulnerability could enable attackers to, bypass front-end security controls, launch targeted attacks against active site users, and poison web caches. This problem has been patched in Eventlet 0.40.3 by dropping trailers which is a breaking change if a backend behind eventlet.wsgi proxy requires trailers. A workaround involves not using eventlet.wsgi facing untrusted clients.
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Sun, 31 Aug 2025 08:45:00 +0000
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Eventlet
Eventlet eventlet |
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Vendors & Products |
Eventlet
Eventlet eventlet |
Sat, 30 Aug 2025 00:15:00 +0000
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threat_severity
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cvssV3_1
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Fri, 29 Aug 2025 21:30:00 +0000
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Description | Eventlet is a concurrent networking library for Python. Prior to version 0.40.3, the Eventlet WSGI parser is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer sections. This vulnerability could enable attackers to, bypass front-end security controls, launch targeted attacks against active site users, and poison web caches. This problem has been patched in Eventlet 0.40.3 by dropping trailers which is a breaking change if a backend behind eventlet.wsgi proxy requires trailers. A workaround involves not using eventlet.wsgi facing untrusted clients. | |
Title | Eventlet affected by HTTP request smuggling in unparsed trailers | |
Weaknesses | CWE-444 | |
References |
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Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-08-29T21:12:24.534Z
Reserved: 2025-08-22T14:30:32.223Z
Link: CVE-2025-58068

No data.

Status : Received
Published: 2025-08-29T22:15:32.327
Modified: 2025-08-29T22:15:32.327
Link: CVE-2025-58068


Updated: 2025-08-31T08:41:34Z