UBUNTU-CVE-2026-52690

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Source
https://ubuntu.com/security/CVE-2026-52690
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-52690
Upstream
Published
2026-06-25T14:16:00Z
Modified
2026-06-29T23:15:15.800068020Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.

References

Affected packages

Ubuntu:24.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.9.0-2
4.9.1-4
4.9.2-1
4.9.2-1build1
4.9.2-2
4.9.3-1
4.9.3-1build2
4.9.3-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "4.9.3-1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:25.10
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*
5.2.0-5
5.2.2-1
5.2.2-2
5.2.4-2
5.2.4-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "5.2.4-2build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:26.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=resolute

Affected ranges

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

Affected versions

5.*
5.2.4-2build2
5.3.1-1
5.3.3-1
5.3.4-1
5.3.4-1build1
5.3.4-2
5.3.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "5.3.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:Pro:16.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

3.*
3.7.3-1
4.*
4.0.0~alpha1-1
4.0.0~alpha1-2
4.0.0~alpha2-2
4.0.0~alpha2-2ubuntu0.1
4.0.0~alpha2-2ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "4.0.0~alpha2-2ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:Pro:18.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

4.*
4.0.6-1
4.0.6-1build1
4.0.7-1
4.1.1-1
4.1.1-1build1
4.1.1-2
4.1.1-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "4.1.1-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:Pro:20.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

4.*
4.2.0-6
4.2.1-1
4.2.1-1build1
4.2.1-1build2
4.2.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "4.2.1-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"
Ubuntu:Pro:22.04:LTS
pdns-recursor

Package

Name
pdns-recursor
Purl
pkg:deb/ubuntu/pdns-recursor?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

4.*
4.4.2-3
4.6.0-1ubuntu1
4.6.0-1ubuntu1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "pdns-recursor",
            "binary_version": "4.6.0-1ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-52690.json"