DEBIAN-CVE-2026-123587

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Source
https://security-tracker.debian.org/tracker/CVE-2026-123587
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123587.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123587
Upstream
Published
2026-11-08T02:16:52Z
Modified
2026-11-08T16:00:06Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

The DNSSEC validation in the Hickory DNS hickory-net crate 0.26.0 before 0.26.2 identifies wraparound NSEC records by comparing the next domain name to an SOA record in the response, accepting that SOA even if it fails validation. Attackers who can supply DNS responses can combine a genuine NSEC record and its RRSIG with a crafted SOA record to forge nonexistence of any RRset.

References

Affected packages

Debian:14 / rust-hickory-net

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.26.3-1

Affected versions

0.*
0.26.1-1
0.26.1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123587.json"