UBUNTU-CVE-2026-123582

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Source

https://ubuntu.com/security/CVE-2026-123582

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123582.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-123582

Upstream

CVE-2026-123582

Published

2026-11-09T00:00:00Z

Modified

2026-11-10T02:50:21Z

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

The validating recursive resolver and validating forwarder in Hickory DNS (hickory-server) 0.25.0 before 0.26.2 do not check whether the SOA record passed DNSSEC validation when assembling NXDOMAIN or NODATA responses. An attacker able to supply forged DNS responses can have a forged SOA record returned to clients with the AD bit set, misleading clients that rely on the server's DNSSEC validation.

References

Affected packages

Ubuntu:26.10 / rust-hickory-server

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.24.4-2

0.26.1-1

Ecosystem specific

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

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-123582.json"

Ubuntu:26.04:LTS / rust-hickory-server