Distribution advisory
This page covers CVE-2026-44608 as tracked by Alpine, for the package unbound. The fix is available in version 1.25.1-r0; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: None.
- Integrity impact: None.
- Availability impact: High — total loss, or loss the attacker controls.
Weakness class
ALPINE-CVE-2026-44608 is classified as CWE-413: Improper Resource Locking. The product does not lock or does not correctly lock a resource when the product must have exclusive access to the resource.
Affected software
ALPINE-CVE-2026-44608 is recorded against 1 package.
- unbound (from 1.14.0 up to 1.25.1-r0)
Timeline and source
Published on 20 May 2026 and last revised on 8 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
security.alpinelinux.org (Advisory)
Other advisories for this package
unbound has other advisories on record. If you are patching this one, these are worth checking on the same host:
Same weakness in other software
These advisories are the same class of weakness (CWE-413: Improper Resource Locking) in other software:
