HTTP Request Smuggling Affecting eventlet package, versions [,0.40.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-EVENTLET-12260136
- published31 Aug 2025
- disclosed29 Aug 2025
- creditsebastianosrt
Introduced: 29 Aug 2025
NewCVE-2025-58068 (opens in a new tab)How to fix?
Upgrade eventlet to version 0.40.3 or higher.
Overview
eventlet is a Highly concurrent networking library
Affected versions of this package are vulnerable to HTTP Request Smuggling via improper handling of HTTP trailer sections in the wsgi parser. An attacker can bypass front-end security controls, launch targeted attacks against active site users, and poison web caches by sending specially crafted HTTP requests.
Workaround
This vulnerability can be mitigated by not using the eventlet.wsgi process to face untrusted clients.