CVE•Published 2025-08-29•Modified 2026-10-19•1 article on news•6 live references•NVD data

CVE-2025-58068Eventlet · Eventlet

Vulnerability data via NVD (ingested)

CVSS v3.1

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 69% of all CVEs

Weaknesses (CWE)

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

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.

Timeline

Published 2025-08-29

Modified 2026-10-19

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2025-58068

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Eventlet Eventlet"

All exposed Eventlet Eventlet instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Eventlet"

HTTP body or banner mentions "Eventlet" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2025-58068