Medium
opennds — security advisory
Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.
- Products
- opennds
- Affected versions
- 10.2.0+dfsg-1, 10.2.0+dfsg-1build1, 10.2.0+dfsg-1build2, 10.2.0+dfsg-1ubuntu0.24.04.1~esm1, 10.3.1+dfsg-1, 10.3.1+dfsg-1build1, 9.10.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-38819
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:02 UTC · Revision 1
Source evidence
Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.
osv:UBUNTU-CVE-2026-38819
opennds
Fixed versions: Not specified
opennds
Fixed versions: Not specified
opennds
Fixed versions: Not specified
Complete source record
{
"id": "058800dfc534fd57cefae181bb2d32e5f26afdfc56915cd35245a5ff9c329036",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-38819",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-38819",
"summary": "Multiple memory leaks in openNDS before 11.0.0 allow an unauthenticated attacker on the captive portal network to exhaust all available memory on the device within minutes.",
"evidence": "osv:UBUNTU-CVE-2026-38819",
"products": [
{
"name": {
"value": "opennds",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.10.0-1",
"evidence": "/affected/0/versions"
},
{
"value": "10.2.0+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "10.2.0+dfsg-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "10.2.0+dfsg-1build2",
"evidence": "/affected/0/versions"
},
{
"value": "10.2.0+dfsg-1ubuntu0.24.04.1~esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "opennds",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "10.3.1+dfsg-1build1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "opennds",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "10.3.1+dfsg-1",
"evidence": "/affected/2/versions"
},
{
"value": "10.3.1+dfsg-1build1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-38819",
"aliases": [
"UBUNTU-CVE-2026-38819"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:H/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": "opennds",
"purl": "pkg:deb/ubuntu/opennds?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"9.10.0-1",
"10.2.0+dfsg-1",
"10.2.0+dfsg-1build1",
"10.2.0+dfsg-1build2",
"10.2.0+dfsg-1ubuntu0.24.04.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38819.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "opennds",
"binary_version": "10.2.0+dfsg-1ubuntu0.24.04.1~esm1"
},
{
"binary_name": "opennds-daemon",
"binary_version": "10.2.0+dfsg-1ubuntu0.24.04.1~esm1"
},
{
"binary_name": "opennds-daemon-common",
"binary_version": "10.2.0+dfsg-1ubuntu0.24.04.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opennds",
"purl": "pkg:deb/ubuntu/opennds?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"10.3.1+dfsg-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38819.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "opennds",
"binary_version": "10.3.1+dfsg-1build1"
},
{
"binary_name": "opennds-daemon",
"binary_version": "10.3.1+dfsg-1build1"
},
{
"binary_name": "opennds-daemon-common",
"binary_version": "10.3.1+dfsg-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "opennds",
"purl": "pkg:deb/ubuntu/opennds?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"10.3.1+dfsg-1",
"10.3.1+dfsg-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38819.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "opennds",
"binary_version": "10.3.1+dfsg-1build1"
},
{
"binary_name": "opennds-daemon",
"binary_version": "10.3.1+dfsg-1build1"
},
{
"binary_name": "opennds-daemon-common",
"binary_version": "10.3.1+dfsg-1build1"
}
]
}
}
],
"modified": "2026-10-17T13:00:03.105184164Z",
"provider": "osv",
"upstream": [
"CVE-2026-38819"
],
"references": [
"https://ubuntu.com/security/CVE-2026-38819",
"https://www.cve.org/CVERecord?id=CVE-2026-38819",
"https://github.com/openNDS/openNDS/commit/b2801d9f14af44a23be7e9a1c378623bc5947c4c",
"https://github.com/openNDS/openNDS/commit/f2332e68c6d34f8403db346e380fff3817020d5c"
]
},
"related_cves": [
{
"value": "CVE-2026-38819",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360198,
"published_at": "2026-08-28T02:16:00+00:00"
}