CVE-2026-96888

Named may terminate unexpectedly when a redirect zone is used with strict QNAME minimization

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.46 % · percentile 40 (2026-10-27)
State: PUBLISHED
Published: 2026-10-21
Updated: 2026-10-21
Assigner: isc
NVD status: Awaiting Analysis

Description

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	isc
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · security-officer@isc.org (Secondary)

Weaknesses (CWE)

European references

ENISA EUVD · EUVD-2026-107255
GCVE · GCVE-0-2026-96888

CERT-FR advisories

CERTFR-2026-AVI-1365 — Multiples vulnérabilités dans ISC BIND · cert.ssi.gouv.fr

Affected products

Product	Versions
ISC · BIND 9	affected 9.16.0 ≤ 9.18.50 ; affected 9.20.0 ≤ 9.20.29 ; affected 9.21.0 ≤ 9.21.26 ; affected 9.16.8-S1 ≤ 9.18.50-S1 ; affected 9.20.9-S1 ≤ 9.20.29-S1

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD