RockyLinux 10 : unbound (RLSA-2026:55892)

high Nessus Plugin ID 337637

Synopsis

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

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55892 advisory.

* unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes (CVE-2026-44690)

* unbound: Unbound: Denial of Service via malformed EDNS Report-Channel option (CVE-2026-55973)

Tenable has extracted the preceding description block directly from the RockyLinux 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 packages.

Plugin Details

Severity: High

ID: 337637

File Name: rocky_linux_RLSA-2026-55892.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 8/18/2026

Updated: 8/18/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.95

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-44690

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:python3-unbound-debuginfo, p-cpe:/a:rocky:linux:python3-unbound, p-cpe:/a:rocky:linux:unbound-anchor-debuginfo, p-cpe:/a:rocky:linux:unbound-anchor, p-cpe:/a:rocky:linux:unbound-debuginfo, p-cpe:/a:rocky:linux:unbound-debugsource, p-cpe:/a:rocky:linux:unbound-devel, p-cpe:/a:rocky:linux:unbound-dracut, p-cpe:/a:rocky:linux:unbound-libs-debuginfo, p-cpe:/a:rocky:linux:unbound-libs, p-cpe:/a:rocky:linux:unbound-utils-debuginfo, p-cpe:/a:rocky:linux:unbound-utils, p-cpe:/a:rocky:linux:unbound

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/18/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-44690, CVE-2026-55973

Detections

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