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GHSA-hw6f-rjfj-j7j7

Опубликовано: 29 авг. 2025
Источник: github
Github: Прошло ревью
CVSS4: 6.3

Описание

Eventlet affected by HTTP request smuggling in unparsed trailers

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

Пакеты

Наименование

eventlet

pip
Затронутые версииВерсия исправления

< 0.40.3

0.40.3

EPSS

Процентиль: 16%
0.00052
Низкий

6.3 Medium

CVSS4

Дефекты

CWE-444

Связанные уязвимости

ubuntu
8 дней назад

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.

CVSS3: 6.5
redhat
8 дней назад

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.

nvd
8 дней назад

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.

debian
8 дней назад

Eventlet is a concurrent networking library for Python. Prior to versi ...

suse-cvrf
4 дня назад

Security update for python-eventlet

EPSS

Процентиль: 16%
0.00052
Низкий

6.3 Medium

CVSS4

Дефекты

CWE-444