High
ndpi — security advisory
nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
- Products
- ndpi
- Affected versions
- 1.5.0-1, 1.6-1, 1.7.1~git20151130.6f3d5a7-1, 1.8-1, 2.2-1, 2.6-4, 2.6-5, 4.0-4, 4.2-2, 4.2-2.1, 4.2-2.1build1, 4.2-2.1build2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-88357
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:30 UTC · Revision 1
Source evidence
nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
osv:UBUNTU-CVE-2026-88357
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
ndpi
Fixed versions: Not specified
Complete source record
{
"id": "ca26b9bcb9479ad4a30c22e590d7355c43ae166c77040d2f78539be864a3138e",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-88357",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-88357",
"summary": "nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.",
"evidence": "osv:UBUNTU-CVE-2026-88357",
"products": [
{
"name": {
"value": "ndpi",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.5.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.1~git20151130.6f3d5a7-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.8-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.2-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.6-4",
"evidence": "/affected/2/versions"
},
{
"value": "2.6-5",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.0-4",
"evidence": "/affected/3/versions"
},
{
"value": "4.2-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2-2",
"evidence": "/affected/4/versions"
},
{
"value": "4.2-2.1",
"evidence": "/affected/4/versions"
},
{
"value": "4.2-2.1build1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2-2.1build2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "ndpi",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2-2.1build1",
"evidence": "/affected/6/versions"
},
{
"value": "4.2-2.1build2",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-88357",
"aliases": [
"UBUNTU-CVE-2026-88357"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.5.0-1",
"1.6-1",
"1.7.1~git20151130.6f3d5a7-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "1.7.1~git20151130.6f3d5a7-1"
},
{
"binary_name": "libndpi3",
"binary_version": "1.7.1~git20151130.6f3d5a7-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.8-1",
"2.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "2.2-1"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "2.2-1"
},
{
"binary_name": "libndpi5",
"binary_version": "2.2-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"2.6-4",
"2.6-5"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "2.6-5"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "2.6-5"
},
{
"binary_name": "libndpi2.6",
"binary_version": "2.6-5"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"4.0-4",
"4.2-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "4.2-2"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "4.2-2"
},
{
"binary_name": "libndpi4.2",
"binary_version": "4.2-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"4.2-2",
"4.2-2.1",
"4.2-2.1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "4.2-2.1build1"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "4.2-2.1build1"
},
{
"binary_name": "libndpi4.2t64",
"binary_version": "4.2-2.1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"4.2-2.1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "4.2-2.1build2"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "4.2-2.1build2"
},
{
"binary_name": "libndpi4.2t64",
"binary_version": "4.2-2.1build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ndpi",
"purl": "pkg:deb/ubuntu/ndpi?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"4.2-2.1build1",
"4.2-2.1build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88357.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libndpi-bin",
"binary_version": "4.2-2.1build2"
},
{
"binary_name": "libndpi-wireshark",
"binary_version": "4.2-2.1build2"
},
{
"binary_name": "libndpi4.2t64",
"binary_version": "4.2-2.1build2"
}
]
}
}
],
"modified": "2026-10-17T13:01:15.555185263Z",
"provider": "osv",
"upstream": [
"CVE-2026-88357"
],
"references": [
"https://ubuntu.com/security/CVE-2026-88357",
"https://www.cve.org/CVERecord?id=CVE-2026-88357"
]
},
"related_cves": [
{
"value": "CVE-2026-88357",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361403,
"published_at": "2026-09-24T16:17:00+00:00"
}