Fedora 44 : unbound (2026-9142230324)

medium Nessus Plugin ID 373489

Language:

Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9142230324 advisory.

## Update to 1.26.2 (rhbz#2558169)

Security fixes from the upstream changelog:

- Fix CVE-2026-97206, DoQ path-migration can lead to use-after-free on multi-threaded deployments. Thanks to Kunta Chu and Jianjun Chen from Tsinghua University for the report.
- Fix CVE-2026-50106, Possible insecure NXDOMAIN for non-existing records under a configured island trust anchor underneath an insecure parent. Thanks to Qifan Zhang from Palo Alto Networks for the report.
- Fix CVE-2026-96405, Aggregate DNS name chained pointer decompression work leads to degradation of service. Thanks to Yuheng Zhang (Tsinghua University and Jingxian Technology Co., Ltd.), Jianjun Chen (Tsinghua University), Zihan Wang (Z.AI Co., Ltd.) and Kaiwen Shen (CloudItera) for the report.
- Fix CVE-2026-109125, Possible cache poisoning vulnerability via a cache side-channel exposed by 'unwanted-reply-threshold'. Thanks to TaoFei Guo (Peking University), and Yang Luo and JianJun Chen (Tsinghua University) for the report.
- Fix CVE-2026-35501, Bypass of a configured island trust anchor underneath an insecure parent from an attacker-controlled NSEC record. Thanks to Qifan Zhang from Palo Alto Networks for the report.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected unbound package.

Plugin Details

Severity: Medium

ID: 373489

File Name: fedora_2026-9142230324.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Fedora Local Security Checks

Published: 10/29/2026

Updated: 10/29/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.51

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:C

CVSS Score Source: CVE-2026-50106

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:44, p-cpe:/a:fedoraproject:fedora:unbound

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2026

Vulnerability Publication Date: 10/21/2026

Reference Information

CVE: CVE-2026-109125, CVE-2026-35501, CVE-2026-50106, CVE-2026-96405, CVE-2026-97206

FEDORA: 2026-9142230324

IAVA: 2026-A-1194

Detections

Analytics