CVE-2026-40606

MEDIUM EPSS 6.2%
Published Apr 21, 20262mo ago · Modified Jun 17, 20262w ago
4.8 CVSS 3.1
Medium
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Published Apr 21, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
4.8
Exploitability
2.2
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
6.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-90

Affected Products 1

VendorProductVersionRange
mitmproxymitmproxy* <12.2.2

References 1

  • github.com https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-527g-3w9m-29hv
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.