SB2026092157 - Anolis OS update for unbound
Published: September 21, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2026-55708)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote user to bypass local DNS policy protections.
The vulnerability exists due to improper access control in the unbound-control view_local_data and view_local_datas command handling when creating local zones for an already configured named view with no local data. A remote user can invoke the control interface to bypass local DNS policy protections.
Queries for default-protected names from clients mapped to the affected view may be forwarded to the public DNS instead of being answered locally.
Remediation
Install update from vendor's website.