pypi package reportIs eventlet safe?
3 known vulnerabilities, worst severity MODERATE.
// reach9 direct dependencies
2 carry known advisories, worst HIGH
21 packages depend on it
an advisory here reaches each of them
// ai model usageNo published models are known to use this package.
cvssCVSS v4.0 base score out of 10
epsschance of exploitation in 30 days, 36th percentile of all CVEs
xyz scoreCyberXYZ composite out of 10
fig. 01 — GHSA-hw6f-rjfj-j7j7, the advisory selected below
// 3 advisories
// impactThe 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
// patchesProblem 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.
// workaroundsDo not use eventlet.wsgi facing untrusted clients.
// references // cvss v4.0 vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- Present
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- None
- Integrity (vulnerable system)
- None
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- Low
- Integrity (subsequent systems)
- Low
- Availability (subsequent systems)
- None
Checked 2026-11-06 at 22:26 UTC. The most recent advisory here was published 2025-08-29. Updated continuously from NVD, GHSA, OSV and CNA feeds.