UnratedFix available
munge vulnerability
Type: advisorySources: OSV
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.
- Products
- munge
- Affected versions
- 0.5.10-1, 0.5.10-1ubuntu1, 0.5.11-1, 0.5.11-1ubuntu1, 0.5.11-1ubuntu1.1, 0.5.11-3, 0.5.11-3ubuntu0.1, 0.5.12-2, 0.5.13-1, 0.5.13-2build1, 0.5.14-6, 0.5.15-2, 0.5.15-3ubuntu1, 0.5.15-4, 0.5.15-4build1, 0.5.16-1
- Fixed versions
- 0.5.11-1ubuntu1.1+esm1, 0.5.11-3ubuntu0.1+esm1, 0.5.13-1ubuntu0.1~esm1, 0.5.13-2ubuntu0.1~esm1, 0.5.14-6ubuntu0.1, 0.5.15-4ubuntu0.1, 0.5.16-1ubuntu0.1
- CVEs
- CVE-2026-25506
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:16 UTC · Revision 1
Source evidence
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.
osv:USN-8040-1
munge
Fixed versions: 0.5.11-1ubuntu1.1+esm1
munge
Fixed versions: 0.5.11-3ubuntu0.1+esm1
munge
Fixed versions: 0.5.13-1ubuntu0.1~esm1
munge
Fixed versions: 0.5.13-2ubuntu0.1~esm1
munge
Fixed versions: 0.5.14-6ubuntu0.1
munge
Fixed versions: 0.5.15-4ubuntu0.1
munge
Fixed versions: 0.5.16-1ubuntu0.1
Complete source record
{
"id": "02be6b534c6b0dbe19cf9cf5ea8657a087807bb06cb1acbb742dfe5475c66a98",
"url": "https://osv.dev/vulnerability/USN-8040-1",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "munge vulnerability",
"summary": "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.",
"evidence": "osv:USN-8040-1",
"products": [
{
"name": {
"value": "munge",
"evidence": "/affected/0/package/name"
},
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{
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"evidence": "/affected/0/ranges"
}
],
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{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
"value": "0.5.11-1ubuntu1",
"evidence": "/affected/0/versions"
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{
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}
]
},
{
"name": {
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{
"value": "0.5.11-3ubuntu0.1+esm1",
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}
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{
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{
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{
"name": {
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{
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}
],
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{
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},
{
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{
"name": {
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{
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{
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}
]
},
{
"name": {
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},
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{
"value": "0.5.14-6ubuntu0.1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": [
{
"value": "0.5.14-6",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "munge",
"evidence": "/affected/5/package/name"
},
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{
"value": "0.5.15-4ubuntu0.1",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": [
{
"value": "0.5.15-2",
"evidence": "/affected/5/versions"
},
{
"value": "0.5.15-3ubuntu1",
"evidence": "/affected/5/versions"
},
{
"value": "0.5.15-4",
"evidence": "/affected/5/versions"
},
{
"value": "0.5.15-4build1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "munge",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.5.16-1ubuntu0.1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
"value": "0.5.16-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "unknown",
"structured": {
"id": "USN-8040-1",
"aliases": [
"USN-8040-1"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
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{
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]
}
],
"package": {
"name": "munge",
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},
"versions": [
"0.5.10-1",
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],
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{
"id": "CVE-2026-25506",
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},
{
"type": "CVSS_V3",
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{
"type": "CVSS_V3",
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{
"type": "Ubuntu",
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}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.11-1ubuntu1.1+esm1"
},
{
"binary_name": "munge",
"binary_version": "0.5.11-1ubuntu1.1+esm1"
}
],
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
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{
"introduced": "0"
},
{
"fixed": "0.5.11-3ubuntu0.1+esm1"
}
]
}
],
"package": {
"name": "munge",
"purl": "pkg:deb/ubuntu/munge?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
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],
"database_specific": {
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{
"type": "CVSS_V3",
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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{
"type": "Ubuntu",
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]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
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{
"binary_name": "munge",
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],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
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{
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}
]
}
],
"package": {
"name": "munge",
"purl": "pkg:deb/ubuntu/munge?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"0.5.12-2",
"0.5.13-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json",
"cves_map": {
"cves": [
{
"id": "CVE-2026-25506",
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{
"type": "CVSS_V3",
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{
"type": "CVSS_V3",
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.13-1ubuntu0.1~esm1"
},
{
"binary_name": "munge",
"binary_version": "0.5.13-1ubuntu0.1~esm1"
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],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
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},
{
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],
"package": {
"name": "munge",
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},
"versions": [
"0.5.13-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json",
"cves_map": {
"cves": [
{
"id": "CVE-2026-25506",
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{
"type": "CVSS_V3",
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
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]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.13-2ubuntu0.1~esm1"
},
{
"binary_name": "munge",
"binary_version": "0.5.13-2ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.14-6ubuntu0.1"
}
]
}
],
"package": {
"name": "munge",
"purl": "pkg:deb/ubuntu/munge?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.5.14-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json",
"cves_map": {
"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": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.14-6ubuntu0.1"
},
{
"binary_name": "munge",
"binary_version": "0.5.14-6ubuntu0.1"
}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.15-4ubuntu0.1"
}
]
}
],
"package": {
"name": "munge",
"purl": "pkg:deb/ubuntu/munge?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.5.15-2",
"0.5.15-3ubuntu1",
"0.5.15-4",
"0.5.15-4build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json",
"cves_map": {
"cves": [
{
"id": "CVE-2026-25506",
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{
"type": "CVSS_V3",
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},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "CVSS_V3",
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},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.15-4ubuntu0.1"
},
{
"binary_name": "munge",
"binary_version": "0.5.15-4ubuntu0.1"
}
],
"availability": "No subscription required"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.16-1ubuntu0.1"
}
]
}
],
"package": {
"name": "munge",
"purl": "pkg:deb/ubuntu/munge?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.5.16-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8040-1.json",
"cves_map": {
"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": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
}
],
"ecosystem": "Ubuntu:25.10"
}
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libmunge2",
"binary_version": "0.5.16-1ubuntu0.1"
},
{
"binary_name": "munge",
"binary_version": "0.5.16-1ubuntu0.1"
}
],
"availability": "No subscription required"
}
}
],
"modified": "2026-10-27T04:16:47.520751944Z",
"provider": "osv",
"upstream": [
"CVE-2026-25506",
"UBUNTU-CVE-2026-25506"
],
"references": [
"https://ubuntu.com/security/notices/USN-8040-1",
"https://ubuntu.com/security/CVE-2026-25506"
]
},
"related_cves": [
{
"value": "CVE-2026-25506",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 460202,
"published_at": "2026-02-12T18:08:10+00:00"
}