High
aardvark-dns — security advisory
Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.
- Products
- aardvark-dns
- Affected versions
- 1.12.2-2, 1.14.0-3, 1.16.0-2, 1.16.0-3, 1.17.1-2, 1.17.1-3, 1.4.0-4, 1.4.0-5
- Fixed versions
- Not specified
- CVEs
- CVE-2026-35406
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:01 UTC · Revision 1
Source evidence
Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.
osv:UBUNTU-CVE-2026-35406
aardvark-dns
Fixed versions: Not specified
aardvark-dns
Fixed versions: Not specified
aardvark-dns
Fixed versions: Not specified
aardvark-dns
Fixed versions: Not specified
Complete source record
{
"id": "4609602e3005946244ac1cb2527a0414783df09fe222af1998886c5b079b0825",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-35406",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-35406",
"summary": "Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.",
"evidence": "osv:UBUNTU-CVE-2026-35406",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.4.0-4",
"evidence": "/affected/0/versions"
},
{
"value": "1.4.0-5",
"evidence": "/affected/0/versions"
}
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{
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{
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]
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{
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{
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},
{
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"evidence": "/affected/3/versions"
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{
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}
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],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-35406",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"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": [
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"package": {
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},
"versions": [
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"database_specific": {
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},
"ecosystem_specific": {
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{
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"package": {
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
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"database_specific": {
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},
"ecosystem_specific": {
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"ecosystem": "Ubuntu:26.10"
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},
"ecosystem_specific": {
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{
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"1.16.0-2",
"1.16.0-3"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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}
],
"modified": "2026-10-17T13:00:02.715376292Z",
"provider": "osv",
"upstream": [
"CVE-2026-35406"
],
"references": [
"https://ubuntu.com/security/CVE-2026-35406",
"https://www.cve.org/CVERecord?id=CVE-2026-35406",
"https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1",
"https://github.com/containers/aardvark-dns/releases/tag/v1.17.1",
"https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j"
]
},
"related_cves": [
{
"value": "CVE-2026-35406",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 360182,
"published_at": "2026-04-07T22:16:00+00:00"
}