CVE-2026-40606
Medium · 4.8CVSS
4.8
EPSS
0.3%
Published
Apr 21, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Tumbleweed | python-mitmproxy | 0 | 12.2.2-1.1 |
Related vulnerabilities
- GHSA-527g-3w9m-29hv LDAP Injection in mitmproxy Same vulnerability
- CVE-2022-3602 A buffer overrun can be triggered in X.509 certificate verification, specifically in name… Also affects python-mitmproxy
- CVE-2026-15723 GitLab has remediated an issue in GitLab CE/EE affecting all versions from 10.1 before… CWE-90
- CVE-2026-80055 Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions… CWE-90
- CVE-2026-75020 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')… CWE-90
- CVE-2026-19271 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')… CWE-90
- CVE-2026-76373 In versions below 2.3.8 of the AD LDAP app for Splunk SOAR, a user who holds a role with… CWE-90
- CVE-2026-19930 A security flaw has been discovered in Dolibarr up to 23.0.3. CWE-90