UBUNTU-CVE-2026-40606

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Source
https://ubuntu.com/security/CVE-2026-40606
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-40606
Upstream
  • CVE-2026-40606
Published
2026-04-21T18:16:00Z
Modified
2026-05-20T16:25:40.468067500Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:16.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.11.3-3
0.12.1-2
0.13-1
0.15-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "0.15-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:18.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.2-2
2.0.2-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "2.0.2-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:20.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.0.4-6
4.0.4-6.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "4.0.4-6.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:22.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.0.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "6.0.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:24.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.1.1-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "8.1.1-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:25.10
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.1.1-2
8.1.1-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "8.1.1-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"
Ubuntu:26.04:LTS
mitmproxy

Package

Name
mitmproxy
Purl
pkg:deb/ubuntu/mitmproxy?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.1.1-3
8.1.1-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "mitmproxy",
            "binary_version": "8.1.1-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-40606.json"