UBUNTU-CVE-2026-78356

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Source
https://ubuntu.com/security/CVE-2026-78356
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-78356
Upstream
  • CVE-2026-78356
Published
2026-10-13T00:00:00Z
Modified
2026-10-14T03:23:31Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The OTRS Agent Frontend configuration endpoint can be accessed without authentication. This allows unauthenticated remote users to retrieve internal application configuration that is intended for use by the authenticated Agent Frontend. The exposed information may include configured frontend routes and their associated authorization groups, authentication configuration, enabled product features, third-party integration settings, and other implementation details. The exposed configuration does not directly contain user credentials or provide unauthorized modification of the OTRS configuration. However, the disclosed information may assist an attacker in fingerprinting the affected OTRS installation and identifying enabled functionality or security-relevant configuration that could be used to prepare further attacks. This issue affects OTRS: * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.7.X

References

Affected packages

Ubuntu:16.04:LTS
otrs2

Package

Name
otrs2
Purl
pkg:deb/ubuntu/otrs2?arch=source&distro=xenial

Affected ranges

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

Affected versions

4.*
4.0.10-1
5.*
5.0.1-1
5.0.1-2
5.0.2-1
5.0.3-1
5.0.5-1
5.0.6-1
5.0.7-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs",
            "binary_version":  "5.0.7-1"
        },
        {
            "binary_name":  "otrs2",
            "binary_version":  "5.0.7-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"
Ubuntu:18.04:LTS
otrs2

Package

Name
otrs2
Purl
pkg:deb/ubuntu/otrs2?arch=source&distro=bionic

Affected ranges

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

Affected versions

5.*
5.0.23-1
5.0.24-1
6.*
6.0.1-1
6.0.2-1
6.0.3-1
6.0.4-1
6.0.5-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs",
            "binary_version":  "6.0.5-1"
        },
        {
            "binary_name":  "otrs2",
            "binary_version":  "6.0.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"
Ubuntu:20.04:LTS
otrs2

Package

Name
otrs2
Purl
pkg:deb/ubuntu/otrs2?arch=source&distro=focal

Affected ranges

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

Affected versions

6.*
6.0.20-1
6.0.23-2
6.0.24-1
6.0.25-1
6.0.25-2
6.0.25-3
6.0.26-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs",
            "binary_version":  "6.0.26-1"
        },
        {
            "binary_name":  "otrs2",
            "binary_version":  "6.0.26-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"
Ubuntu:22.04:LTS
otrs2

Package

Name
otrs2
Purl
pkg:deb/ubuntu/otrs2?arch=source&distro=jammy

Affected ranges

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

Affected versions

6.*
6.0.32-6
6.1.2-1
6.2.1-1
6.2.2-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs2",
            "binary_version":  "6.2.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"
Ubuntu:24.04:LTS
znuny

Package

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

Affected ranges

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

Affected versions

6.*
6.5.3-1
6.5.4-1
6.5.5-1
6.5.6-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs2",
            "binary_version":  "6.5.6-1"
        },
        {
            "binary_name":  "znuny",
            "binary_version":  "6.5.6-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"
Ubuntu:26.04:LTS
znuny

Package

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

Affected ranges

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

Affected versions

6.*
6.5.15-2
6.5.18-1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "otrs2",
            "binary_version":  "6.5.18-1"
        },
        {
            "binary_name":  "znuny",
            "binary_version":  "6.5.18-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-78356.json"