UNKNOWN PyPI
Eventlet affected by HTTP request smuggling in unparsed trailers
GHSA-hw6f-rjfj-j7j7 · CVE-2025-58068 · PYSEC-2026-1350
Published · Modified
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Description
Impact
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
- Poison web caches
Patches
Problem has been patched in eventlet 0.40.3.
The patch just drops trailers. If a backend behind eventlet.wsgi proxy requires trailers, then this patch BREAKS your setup.
Workarounds
Do not use eventlet.wsgi facing untrusted clients.
References
- Patch https://github.com/eventlet/eventlet/pull/1062
- This issue is similar to https://github.com/advisories/GHSA-9548-qrrj-x5pj
References
- WEB https://github.com/eventlet/eventlet/security/advisories/GHSA-hw6f-rjfj-j7j7
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2025-58068
- WEB https://github.com/eventlet/eventlet/pull/1062
- WEB https://github.com/eventlet/eventlet/commit/0bfebd1117d392559e25b4bfbfcc941754de88fb
- PACKAGE https://github.com/eventlet/eventlet
- WEB https://lists.debian.org/debian-lts-announce/2025/09/msg00003.html
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