UBUNTU-CVE-2026-25506

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-25506
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-25506
Upstream
Downstream
Related
Published
2026-02-10T19:16:00Z
Modified
2026-02-13T18:13:56.374149Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer overflow vulnerability in munged (the MUNGE authentication daemon) to leak cryptographic key material from process memory. With the leaked key material, the attacker could forge arbitrary MUNGE credentials to impersonate any user (including root) to services that rely on MUNGE for authentication. The vulnerability allows a buffer overflow by sending a crafted message with an oversized address length field, corrupting munged's internal state and enabling extraction of the MAC subkey used for credential verification. This vulnerability is fixed in 0.5.18.

References

Affected packages

Ubuntu:22.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.14-6ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.14-6ubuntu0.1

Affected versions

0.*
0.5.14-6

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.5.14-6ubuntu0.1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.14-6ubuntu0.1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.14-6ubuntu0.1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:24.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.15-4ubuntu0.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.15-4ubuntu0.1

Affected versions

0.*
0.5.15-2
0.5.15-3ubuntu1
0.5.15-4
0.5.15-4build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.5.15-4ubuntu0.1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.15-4ubuntu0.1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.15-4ubuntu0.1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:25.10
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.16-1ubuntu0.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.16-1ubuntu0.1

Affected versions

0.*
0.5.16-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.5.16-1ubuntu0.1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.16-1ubuntu0.1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.16-1ubuntu0.1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:Pro:14.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.11-1ubuntu1.1+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.11-1ubuntu1.1+esm1

Affected versions

0.*
0.5.10-1
0.5.10-1ubuntu1
0.5.11-1
0.5.11-1ubuntu1
0.5.11-1ubuntu1.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.5.11-1ubuntu1.1+esm1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.11-1ubuntu1.1+esm1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.11-1ubuntu1.1+esm1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:Pro:16.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.11-3ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.11-3ubuntu0.1+esm1

Affected versions

0.*
0.5.11-3
0.5.11-3ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.5.11-3ubuntu0.1+esm1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.11-3ubuntu0.1+esm1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.11-3ubuntu0.1+esm1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:Pro:18.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.13-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.13-1ubuntu0.1~esm1

Affected versions

0.*
0.5.12-2
0.5.13-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.5.13-1ubuntu0.1~esm1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.13-1ubuntu0.1~esm1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.13-1ubuntu0.1~esm1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"
Ubuntu:Pro:20.04:LTS
munge

Package

Name
munge
Purl
pkg:deb/ubuntu/munge@0.5.13-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.5.13-2ubuntu0.1~esm1

Affected versions

0.*
0.5.13-2build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.5.13-2ubuntu0.1~esm1",
            "binary_name": "libmunge-dev"
        },
        {
            "binary_version": "0.5.13-2ubuntu0.1~esm1",
            "binary_name": "libmunge2"
        },
        {
            "binary_version": "0.5.13-2ubuntu0.1~esm1",
            "binary_name": "munge"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-25506.json"