DEBIAN-CVE-2026-42389
This fix provides extra hardening for the 5.4.x branch by doing extra validation of incoming answers from authoritative servers.
DEBIAN-CVE-2026-42389
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-2026-42389
pdns-recursor
Source reference: /affected/0/package/name
- Affected versions
- 5.2.4-2
Source reference:
/affected/0/versions5.2.5-1Source reference:
/affected/0/versions5.3.0-1Source reference:
/affected/0/versions5.3.0-2Source reference:
/affected/0/versions5.3.0-3Source reference:
/affected/0/versions5.3.0-4Source reference:
/affected/0/versions5.3.0-5Source reference:
/affected/0/versions5.3.1-1Source reference:
/affected/0/versions5.3.3-1Source reference:
/affected/0/versions5.3.4-1Source reference:
/affected/0/versions5.3.4-2Source reference:
/affected/0/versions5.3.5-1Source reference:
/affected/0/versions5.4.0-1Source reference:
/affected/0/versions5.4.1-1Source reference:
/affected/0/versions5.4.1-2Source reference:
/affected/0/versions5.4.2-1Source reference:
/affected/0/versions5.4.2-2Source reference:
/affected/0/versions - Fixed versions
- 5.4.3-1
Source reference:
/affected/0/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"
},
{
"fixed": "5.4.3-1"
}
]
}
],
"package": {
"name": "pdns-recursor",
"purl": "pkg:deb/debian/pdns-recursor?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"5.2.4-2",
"5.2.5-1",
"5.3.0-1",
"5.3.0-2",
"5.3.0-3",
"5.3.0-4",
"5.3.0-5",
"5.3.1-1",
"5.3.3-1",
"5.3.4-1",
"5.3.4-2",
"5.3.5-1",
"5.4.0-1",
"5.4.1-1",
"5.4.1-2",
"5.4.2-1",
"5.4.2-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42389.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #57630 · Revision 1
- Added to Heist Feed
- Publisher date