Medium
pdns — security advisory
An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.
- Products
- pdns
- Affected versions
- 3.4.5-1build2, 3.4.6-2, 3.4.6-3, 3.4.7-1, 3.4.7-2, 4.0.0~alpha1-1, 4.0.0~alpha2-2, 4.0.0~alpha2-3, 4.0.0~alpha2-3build1, 4.0.0~alpha2-3ubuntu0.1~esm1, 4.0.4-2, 4.0.4-2build1, 4.0.5-1, 4.1.0-1, 4.1.0-2, 4.1.0-2build1, 4.1.1-1, 4.1.1-1ubuntu0.1~esm1, 4.1.6-3build1, 4.2.0-1, 4.2.1-1, 4.2.1-1build1, 4.2.1-1build2, 4.2.1-1ubuntu0.1~esm1, 4.4.1-1build1, 4.4.1-3, 4.4.1-4, 4.5.2-1build1, 4.5.3-1, 4.5.3-1ubuntu0.1~esm1, 4.8.1-1build1, 4.8.3-2, 4.8.3-2build1, 4.8.3-3, 4.8.3-4, 4.8.3-4build2, 4.8.3-4build3, 4.9.4-2, 4.9.7-1, 4.9.7-1build2, 5.0.0-2, 5.0.1-1, 5.0.2-1, 5.0.2-1build1, 5.0.5-4, 5.1.0-1, 5.1.1-1, 5.1.1-2, 5.1.1-3, 5.1.2-1, 5.1.3-1, 5.1.4-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33611
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:27 UTC · Revision 1
Source evidence
An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.
osv:UBUNTU-CVE-2026-33611
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
pdns
Fixed versions: Not specified
Complete source record
{
"id": "4f3aa8652cb3a36310fd4fd5b9c4e8c596731e06b17d12bfd819510b054a86b4",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-33611",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-33611",
"summary": "An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.",
"evidence": "osv:UBUNTU-CVE-2026-33611",
"products": [
{
"name": {
"value": "pdns",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.4.5-1build2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6-2",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.6-3",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.7-1",
"evidence": "/affected/0/versions"
},
{
"value": "3.4.7-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.0~alpha1-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.0~alpha2-2",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.0~alpha2-3",
"evidence": "/affected/0/versions"
},
{
"value": "4.0.0~alpha2-3build1",
"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
}
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},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "4.0.4-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.0.4-2build1",
"evidence": "/affected/1/versions"
},
{
"value": "4.0.5-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.0-2build1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.1.1-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.1.6-3build1",
"evidence": "/affected/2/versions"
},
{
"value": "4.2.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.2.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.2.1-1build1",
"evidence": "/affected/2/versions"
},
{
"value": "4.2.1-1build2",
"evidence": "/affected/2/versions"
},
{
"value": "4.2.1-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.4.1-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "4.4.1-3",
"evidence": "/affected/3/versions"
},
{
"value": "4.4.1-4",
"evidence": "/affected/3/versions"
},
{
"value": "4.5.2-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "4.5.3-1",
"evidence": "/affected/3/versions"
},
{
"value": "4.5.3-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.8.1-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-2",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-2build1",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-3",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-4",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-4build2",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.3-4build3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.9.4-2",
"evidence": "/affected/5/versions"
},
{
"value": "4.9.7-1",
"evidence": "/affected/5/versions"
},
{
"value": "4.9.7-1build2",
"evidence": "/affected/5/versions"
},
{
"value": "5.0.0-2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.2-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "5.0.5-4",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.0-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.1-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.1-2",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.1-3",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.3-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.1.4-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "pdns",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.0-2",
"evidence": "/affected/7/versions"
},
{
"value": "5.0.1-1",
"evidence": "/affected/7/versions"
},
{
"value": "5.0.2-1",
"evidence": "/affected/7/versions"
},
{
"value": "5.0.2-1build1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-33611",
"aliases": [
"UBUNTU-CVE-2026-33611"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pdns",
"purl": "pkg:deb/ubuntu/pdns?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"3.4.5-1build2",
"3.4.6-2",
"3.4.6-3",
"3.4.7-1",
"3.4.7-2",
"4.0.0~alpha1-1",
"4.0.0~alpha2-2",
"4.0.0~alpha2-3",
"4.0.0~alpha2-3build1",
"4.0.0~alpha2-3ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33611.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pdns-backend-geoip",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-ldap",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-lua",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mydns",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mysql",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pgsql",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pipe",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-remote",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-sqlite3",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-tinydns",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-server",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
},
{
"binary_name": "pdns-tools",
"binary_version": "4.0.0~alpha2-3ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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}
]
}
],
"package": {
"name": "pdns",
"purl": "pkg:deb/ubuntu/pdns?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"4.0.4-2",
"4.0.4-2build1",
"4.0.5-1",
"4.1.0-1",
"4.1.0-2",
"4.1.0-2build1",
"4.1.1-1",
"4.1.1-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33611.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pdns-backend-bind",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-geoip",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-ldap",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-lua",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mydns",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mysql",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-odbc",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-opendbx",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pgsql",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pipe",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-remote",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-sqlite3",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-tinydns",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-server",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-tools",
"binary_version": "4.1.1-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pdns",
"purl": "pkg:deb/ubuntu/pdns?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"4.1.6-3build1",
"4.2.0-1",
"4.2.1-1",
"4.2.1-1build1",
"4.2.1-1build2",
"4.2.1-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33611.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pdns-backend-bind",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-geoip",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-ldap",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-lua",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mydns",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mysql",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-odbc",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pgsql",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pipe",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-remote",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-sqlite3",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-tinydns",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-ixfrdist",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-server",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-tools",
"binary_version": "4.2.1-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pdns",
"purl": "pkg:deb/ubuntu/pdns?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"4.4.1-1build1",
"4.4.1-3",
"4.4.1-4",
"4.5.2-1build1",
"4.5.3-1",
"4.5.3-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33611.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pdns-backend-bind",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-geoip",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-ldap",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-lmdb",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-lua2",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-mysql",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-odbc",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pgsql",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-pipe",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-remote",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-sqlite3",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-backend-tinydns",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-ixfrdist",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-server",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
},
{
"binary_name": "pdns-tools",
"binary_version": "4.5.3-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pdns",
"purl": "pkg:deb/ubuntu/pdns?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"4.8.1-1build1",
"4.8.3-2",
"4.8.3-2build1",
"4.8.3-3",
"4.8.3-4",
"4.8.3-4build2",
"4.8.3-4build3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-33611.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pdns-backend-bind",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-geoip",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-ldap",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-lmdb",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-lua2",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-mysql",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-odbc",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-pgsql",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-pipe",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-remote",
"binary_version": "4.8.3-4build3"
},
{
"binary_name": "pdns-backend-sqlite3",
"binary_version": "4.8.3-4build3"
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],
"modified": "2026-10-17T12:55:18.928241039Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-33611",
"https://www.cve.org/CVERecord?id=CVE-2026-33611",
"https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html#insufficient-validation-of-https-and-svcb-records"
]
},
"related_cves": [
{
"value": "CVE-2026-33611",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353666,
"published_at": "2026-04-22T14:16:00+00:00"
}