DEBIAN-CVE-2026-10846
NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.
DEBIAN-CVE-2026-10846
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-10846
ldns
Source reference: /affected/0/package/name
- Affected versions
- 1.8.3-1
Source reference:
/affected/0/versions1.8.3-1.1Source reference:
/affected/0/versions1.8.3-1.1~exp1Source reference:
/affected/0/versions1.8.3-2Source reference:
/affected/0/versions1.8.4-1Source reference:
/affected/0/versions1.8.4-2Source reference:
/affected/0/versions1.9.0-1Source reference:
/affected/0/versions1.9.2-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ldns
Source reference: /affected/1/package/name
- Affected versions
- 1.8.4-2
Source reference:
/affected/1/versions1.9.0-1Source reference:
/affected/1/versions1.9.2-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ldns
Source reference: /affected/2/package/name
- Affected versions
- 1.8.4-2
Source reference:
/affected/2/versions1.9.0-1Source reference:
/affected/2/versions - Fixed versions
- 1.9.2-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ldns",
"purl": "pkg:deb/debian/ldns?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.8.3-1",
"1.8.3-1.1",
"1.8.3-1.1~exp1",
"1.8.3-2",
"1.8.4-1",
"1.8.4-2",
"1.9.0-1",
"1.9.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10846.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ldns",
"purl": "pkg:deb/debian/ldns?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.8.4-2",
"1.9.0-1",
"1.9.2-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10846.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.2-1"
}
]
}
],
"package": {
"name": "ldns",
"purl": "pkg:deb/debian/ldns?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.8.4-2",
"1.9.0-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-10846.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55432 · Revision 1
- Added to Heist Feed
- Publisher date