Detections
Analytics

AlmaLinux 8 : bind9.16 (ALSA-2026:54509)

high Nessus Plugin ID 335442

Synopsis

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

Description

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:54509 advisory.

 * bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331)
 * bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321)
 * bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622)
 * bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721)
 * bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204)
 * bind: bind9: Incorrect acceptance of NSEC3 records (CVE-2026-10723)

Tenable has extracted the preceding description block directly from the AlmaLinux 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.

See Also

https://access.redhat.com/errata/RHSA-2026:54509

https://errata.almalinux.org/8/ALSA-2026-54509.html

Plugin Details

Severity: High

ID: 335442

File Name: alma_linux_ALSA-2026-54509.nasl

Version: 1.1

Type: Local

Published: 8/14/2026

Updated: 8/14/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.92

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-2026-13321

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::sap, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:bind9.16-chroot, p-cpe:/a:alma:linux:bind9.16-devel, p-cpe:/a:alma:linux:bind9.16-dnssec-utils, p-cpe:/a:alma:linux:bind9.16-doc, p-cpe:/a:alma:linux:bind9.16-libs, p-cpe:/a:alma:linux:bind9.16-license, p-cpe:/a:alma:linux:bind9.16-utils, p-cpe:/a:alma:linux:bind9.16, p-cpe:/a:alma:linux:python3-bind9.16

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-10723, CVE-2026-11331, CVE-2026-11622, CVE-2026-11721, CVE-2026-13204, CVE-2026-13321

CWE: 345, 400, 617

RHSA: 2026:54509