PT-2026-139868

CVE-2026-123587

Published

2026-11-08

Updated

2026-11-08

Description by

CVSS 4.0

8.9

High

MetricsAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N

Name of the Vulnerable Software and Affected Versions hickory-net crate versions 0.26.0 through 0.26.1

Description DNSSEC validation fails to properly verify SOA records when identifying wraparound NSEC records. An attacker capable of supplying DNS responses can combine a legitimate NSEC record and its RRSIG with a crafted SOA record to forge the nonexistence of any RRset (Resource Record Set).

Recommendations Update hickory-net crate to version 0.26.2.

Exploitability

Exploit

Fix

Impacts

Researchers

Vendors

Affected products

Weakness enumeration

CWE-290: Authentication Bypass by Spoofing

Related identifiers

CVE-2026-123587