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CVE-2026-40606— ProxyAuth Addon LDAP Injection in mitmproxy

CVSS 4.8 · Medium EPSS 0.04% · P13
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I. Basic Information for CVE-2026-40606

Vulnerability Information
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Vulnerability Title
ProxyAuth Addon LDAP Injection in mitmproxy
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
LDAP查询中使用的特殊元素转义处理不恰当(LDAP注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
mitmproxy 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mitmproxy是mitmproxy开源的一个交互式的、支持 SSL/TLS 的拦截代理，带有用于 HTTP/1、HTTP/2 和 WebSockets 的控制台界面。 mitmproxy 12.2.1及之前版本存在注入漏洞，该漏洞源于LDAP代理身份验证未正确清理用户名，可能导致恶意客户端绕过身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
mitmproxymitmproxy < 12.2.2 -

II. Public POCs for CVE-2026-40606

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III. Intelligence Information for CVE-2026-40606

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IV. Related Vulnerabilities

Same product: mitmproxy
Same vendor: mitmproxy
Same weakness: CWE-90

V. Comments for CVE-2026-40606

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