UBUNTU-CVE-2026-55167

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-55167
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-55167
Upstream
Published
2026-10-15T00:00:00Z
Modified
2026-10-17T12:59:07Z
Severity
  • 4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

LDAP Account Manager (LAM) is a webfrontend for managing entries (e.g. users, groups, DHCP settings) stored in an LDAP directory. Prior to 9.6, installations with WebAuthn two-factor authentication leave the challenge in the same PHP session after the authentication response is processed. A user who has already completed valid password authentication can therefore retain the same signed WebAuthn ceremony state instead of consuming it once. The practical risk is limited by the requirement for a valid password, the same PHP session, and a valid authenticator signature. This issue is fixed in version 9.6.

References

Affected packages

Ubuntu:16.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=xenial

Affected ranges

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

Affected versions

4.*
4.9-1
5.*
5.1-1
5.2-1
5.2-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "5.2-1ubuntu1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "5.2-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"
Ubuntu:18.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=bionic

Affected ranges

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

Affected versions

5.*
5.7-1
6.*
6.1-1
6.2-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "6.2-1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "6.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"
Ubuntu:20.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=focal

Affected ranges

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

Affected versions

6.*
6.7-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "6.7-1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "6.7-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"
Ubuntu:22.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=jammy

Affected ranges

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

Affected versions

7.*
7.5-1
7.7-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "7.7-1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "7.7-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"
Ubuntu:24.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=noble

Affected ranges

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

Affected versions

8.*
8.3-1
8.5-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "8.5-1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "8.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"
Ubuntu:26.04:LTS
ldap-account-manager

Package

Name
ldap-account-manager
Purl
pkg:deb/ubuntu/ldap-account-manager?arch=source&distro=resolute

Affected ranges

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

Affected versions

9.*
9.0-1
9.0-1build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ldap-account-manager",
            "binary_version":  "9.0-1build1"
        },
        {
            "binary_name":  "ldap-account-manager-lamdaemon",
            "binary_version":  "9.0-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55167.json"