CVE-2026-96888

A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

Score

CVSS 3.1 7.5 High

Status

Awaiting Analysis - security-officer@isc.org

Published

2026-10-21

Last modified

2026-10-26

Weaknesses

CWE-476, CWE-617

Affected products

• Bind (Isc)

References

• https://kb.isc.org/docs/cve-2026-96888
• https://downloads.isc.org/isc/bind9/9.20.30
• https://downloads.isc.org/isc/bind9/9.21.27