DEBIAN-CVE-2026-52684

Source
https://security-tracker.debian.org/tracker/CVE-2026-52684
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-52684.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-52684
Upstream
  • CVE-2026-52684
Published
2026-07-23T09:16:26Z
Modified
2026-09-14T17:03:17Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the child records are used immediately if not expired and thus valid, or the records are expired, and in that case not used. So this case can only happen if almost expired records are used to refresh the authoritative NS records.

References

Affected packages

Debian:12 / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/debian/pdns-recursor?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.8.4-1
4.8.6-1
4.8.7-1
4.8.8-1
4.8.8-1+deb12u1
4.9.0-1
4.9.0-2
4.9.1-1
4.9.1-2
4.9.1-3
4.9.1-4
4.9.2-1
4.9.2-2
4.9.3-1
4.9.4-1
4.9.5-1
5.*
5.0.5-1
5.0.7-1
5.0.7-2
5.0.9-1
5.1.3-1
5.1.3-2
5.2.0-1
5.2.0-2
5.2.0-3
5.2.0-4
5.2.0-5
5.2.1-1
5.2.2-1
5.2.2-2
5.2.4-1
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
5.4.3-1
5.4.4-1
5.4.5-1
5.4.6-1

Ecosystem specific

{
    "urgency":  "end-of-life"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-52684.json"

Debian:13 / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/debian/pdns-recursor?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.2.4-2
5.2.4-2+deb13u1
5.2.5-1
5.2.6-0+deb13u1
5.2.7-0+deb13u1
5.2.8-0+deb13u1
5.2.9-0+deb13u1
5.2.11-0+deb13u1
5.2.12-0+deb13u1
5.2.13-0+deb13u1
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
5.4.3-1
5.4.4-1
5.4.5-1
5.4.6-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-52684.json"

Debian:14 / pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/debian/pdns-recursor?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
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
5.4.3-1
5.4.4-1
5.4.5-1
5.4.6-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-52684.json"