PT-2026-63387 · Nlnet · Unbound

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CVE-2026-55708

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Published

2026-07-22

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Updated

2026-07-22

CVSS v3.1

3.1

Low

VectorAV:L/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
In NLnet Labs Unbound 1.6.0 up to and including 1.25.1, the 'view local data' and 'view local datas' commands of 'unbound-control' create a bare local zones tree for an already configured named view when the view is configured with no local data to begin with. However, the creation through the control interface omits adding the default-protected zones (e.g., RFC 1918 reverse, AS112 zones, .onion, .localhost). Once the local zone tree exists without the defaults, every query for a default-protected name from a client mapped to that view escapes to the public DNS via the iterator instead of being answered locally, bypassing local policy expectations.

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-55708

Affected Products

Unbound