{"cve":"CVE-2025-58068","nvd":{"published":"2025-08-29T22:15:32.327","modified":"2026-10-19T17:10:00.173","status":"Modified","description":"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.","cvss_v4":{"vector":"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","score":6.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":9.1},"cwes":["CWE-444"],"references":["https://github.com/eventlet/eventlet/commit/0bfebd1117d392559e25b4bfbfcc941754de88fb","https://github.com/eventlet/eventlet/pull/1062","https://github.com/eventlet/eventlet/security/advisories/GHSA-hw6f-rjfj-j7j7","https://lists.debian.org/debian-lts-announce/2025/09/msg00003.html"],"products":["eventlet:eventlet"],"source":"nvd","synced_at":"2026-10-19T22:07:46.309729541+00:00"},"epss":{"cve":"CVE-2025-58068","score":0.00403,"percentile":0.34322,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-hw6f-rjfj-j7j7","url":"https://osv.dev/vulnerability/GHSA-hw6f-rjfj-j7j7","summary":"Eventlet affected by HTTP request smuggling in unparsed trailers","modified":"2026-07-07T17:56:50.127839963Z","packages":[{"ecosystem":"PyPI","name":"eventlet","purl":"pkg:pypi/eventlet","ranges":["<0.40.3"],"fixed":["0.40.3"]}]},{"id":"PYSEC-2026-1350","url":"https://osv.dev/vulnerability/PYSEC-2026-1350","summary":"Eventlet affected by HTTP request smuggling in unparsed trailers","modified":"2026-07-07T17:46:41.634328928Z","packages":[{"ecosystem":"PyPI","name":"eventlet","purl":"pkg:pypi/eventlet","ranges":["<0.40.3"],"fixed":["0.40.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}