UBUNTU-CVE-2026-123599

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Source
https://ubuntu.com/security/CVE-2026-123599
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123599.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-123599
Upstream
Published
2026-11-09T00:00:00Z
Modified
2026-11-10T02:50:13Z
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
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Hickory DNS hickory-proto before 0.26.0-beta.1 and hickory-net before 0.26.2 contain a DNSSEC validation bypass because verify_rrsets() ignores DNS class when partitioning RRsets, so non-IN records skip signature verification yet are marked secure when the IN records verify. Attackers able to supply DNS responses can include forged CH or HS class records, including DS records, to authenticate any DNSKEY and forge child zone responses.

References

Affected packages

Ubuntu:24.04:LTS / rust-hickory-proto

Package

Name
rust-hickory-proto
Purl
pkg:deb/ubuntu/rust-hickory-proto?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.24.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-hickory-proto-dev",
            "binary_version": "0.24.0-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123599.json"

Ubuntu:26.10 / rust-hickory-net

Package

Name
rust-hickory-net
Purl
pkg:deb/ubuntu/rust-hickory-net?arch=source&distro=stonking

Affected ranges

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

Affected versions

0.*
0.26.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-hickory-net-dev",
            "binary_version": "0.26.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123599.json"

Ubuntu:26.10 / rust-hickory-proto

Package

Name
rust-hickory-proto
Purl
pkg:deb/ubuntu/rust-hickory-proto?arch=source&distro=stonking

Affected ranges

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

Affected versions

0.*
0.24.4-6
0.26.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-hickory-proto-dev",
            "binary_version": "0.26.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123599.json"

Ubuntu:26.04:LTS / rust-hickory-proto

Package

Name
rust-hickory-proto
Purl
pkg:deb/ubuntu/rust-hickory-proto?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.24.4-4.1
0.24.4-6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "librust-hickory-proto-dev",
            "binary_version": "0.24.4-6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123599.json"