Debian/unbound: medium 5.3
In NLnet Labs Unbound up to and including version 1.25.1, when 'unwanted-reply-threshold' is enabled (set to any value greater than zero), glue records of 0.0.0.0/::0 can short-circuit Unbound, on sys
Action: Upgrade unbound to 1.26.1-0+deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.26.1-0+deb13u1 | - |
Fixed versions
| 1.26.1-0+deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-50251#Debian:13/unbound
- https://security-tracker.debian.org/tracker/CVE-2026-50251
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