CVE-2026-78301 Affecting bind package, versions <9.20.29-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (10th percentile)

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  • Snyk IDSNYK-WOLFILATEST-BIND-20197591
  • published28 Sept 2026
  • disclosed16 Sept 2026

Introduced: 16 Sep 2026

NewCVE-2026-78301  (opens in a new tab)

How to fix?

Upgrade Wolfi bind to version 9.20.29-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind package and not the bind package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server (e.g., via zone transfer), queries for names inside the configured zone then lose authoritative status and return an out-of-zone delegation. On a server that also provides recursion BIND can follow this locally sourced cut and cache attacker-supplied data, affecting names outside the configured zone. This situation persists as long as the malformed zone remains in the zone database. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

CVSS Base Scores

version 3.1