NVD Vulnerability Detail
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CVE-2026-40606
Summary

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.

Publication Date April 22, 2026, 3:16 a.m.
Registration Date April 25, 2026, 4:03 a.m.
Last Update April 24, 2026, 10:33 p.m.
CVSS3.1 : MEDIUM
スコア 4.8
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI) 不要
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:mitmproxy:mitmproxy:*:*:*:*:*:*:*:* 12.2.2
Related information, measures and tools
Common Vulnerabilities List