Titouan Lazard discovered that MUNGE contained an exploitable buffer overflow in munged (the MUNGE authentication daemon). A local attacker could possibly use this issue to forge MUNGE credentials, leading to arbitrary code execution.
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:22.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:24.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:25.10",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}
{
"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"
}
]
}"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json"
{
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"cves": [
{
"id": "CVE-2026-25506",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
]
}