id: PYSEC-2026-1350
published: "2026-07-07T16:03:02.778128Z"
modified: "2026-07-07T17:24:06.360154Z"
aliases:
- CVE-2025-58068
- GHSA-hw6f-rjfj-j7j7
summary: Eventlet affected by HTTP request smuggling in unparsed trailers
details: "### Impact\nThe Eventlet WSGI parser is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer sections.\n\nThis vulnerability could enable attackers to:\n- Bypass front-end security controls\n- Launch targeted attacks against active site users\n- Poison web caches\n\n### Patches\nProblem has been patched in eventlet 0.40.3.\n\nThe patch just drops trailers. If a backend behind eventlet.wsgi proxy requires trailers, then this patch BREAKS your setup.\n\n### Workarounds\nDo not use eventlet.wsgi facing untrusted clients.\n\n### References\n- Patch https://github.com/eventlet/eventlet/pull/1062\n- This issue is similar to https://github.com/advisories/GHSA-9548-qrrj-x5pj"
affected:
- package:
    name: eventlet
    ecosystem: PyPI
    purl: pkg:pypi/eventlet
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 0.40.3
  versions:
  - 0.10.0
  - 0.11.0
  - 0.12.1
  - 0.13.0
  - 0.14.0
  - 0.15.2
  - 0.16.1
  - 0.17.4
  - 0.18.2
  - 0.18.3
  - 0.18.4
  - 0.19.0
  - "0.2"
  - 0.20.0
  - 0.20.1
  - 0.21.0
  - 0.22.0
  - 0.22.1
  - 0.23.0
  - 0.24.0
  - 0.24.1
  - 0.25.0
  - 0.25.1
  - 0.25.2
  - 0.26.0
  - 0.26.1
  - 0.27.0
  - 0.28.0
  - 0.28.1
  - 0.29.0
  - 0.29.1
  - 0.30.0
  - 0.30.1
  - 0.30.2
  - 0.30.3
  - 0.31.0
  - 0.31.1
  - 0.32.0
  - 0.33.0
  - 0.33.1
  - 0.33.2
  - 0.33.3
  - 0.34.1
  - 0.34.2
  - 0.34.3
  - 0.35.0
  - 0.35.1
  - 0.35.2
  - 0.36.0
  - 0.36.1
  - 0.37.0
  - 0.38.0
  - 0.38.1
  - 0.38.2
  - 0.39.0
  - 0.39.1
  - 0.40.0
  - 0.40.1
  - 0.40.2
  - 0.5.3
  - 0.6.1
  - "0.7"
  - "0.8"
  - 0.8.16
  - 0.9.17
references:
- type: WEB
  url: https://github.com/eventlet/eventlet/security/advisories/GHSA-hw6f-rjfj-j7j7
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2025-58068
- type: WEB
  url: https://github.com/eventlet/eventlet/pull/1062
- type: WEB
  url: https://github.com/eventlet/eventlet/commit/0bfebd1117d392559e25b4bfbfcc941754de88fb
- type: PACKAGE
  url: https://github.com/eventlet/eventlet
- type: WEB
  url: https://lists.debian.org/debian-lts-announce/2025/09/msg00003.html
- type: PACKAGE
  url: https://pypi.org/project/eventlet
- type: ADVISORY
  url: https://github.com/advisories/GHSA-hw6f-rjfj-j7j7
severity:
- type: CVSS_V4
  score: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N