CVE•Published 2026-04-21•Modified 2026-04-24•0 articles on news•5 live references•NVD data

CVE-2026-40606Mitmproxy · Mitmproxy

Vulnerability data via NVD (ingested)

CVSS v3.1

4.8

MEDIUM

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

EPSS percentile

—

Weaknesses (CWE)

CWE-90Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Description

mitmproxy is a interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers and mitmweb is a web-based interface for mitmproxy. In mitmproxy 12.2.1 and below, the builtin LDAP proxy authentication does not correctly sanitize the username when querying the LDAP server. This allows a malicious client to bypass authentication. Only mitmproxy instances using the proxyauth option with LDAP are affected. This option is not enabled by default. The vulnerability has been fixed in mitmproxy 12.2.2 and above.

Timeline

Published 2026-04-21

Modified 2026-04-24

External references

NVD MITRE Exploit-DB Sploitus 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 tag172 hosts

vuln:CVE-2026-40606

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Mitmproxy Mitmproxy"

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

Shodan · banner/body mention

http.html:"Mitmproxy"

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

More intel sources (5)

Shodan report

vuln:CVE-2026-40606