Detections
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AlmaLinux 8 : nginx:1.24 (ALSA-2026:59216)

high Nessus Plugin ID 339400

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-2026:59216 advisory.

 * nginx: NGINX: Heap buffer over-read allows memory modification or denial of service (CVE-2026-56434)
 * nginx: NGINX: Memory disclosure and denial of service in ngx_http_slice_module (CVE-2026-60005)

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-2026:59216

https://errata.almalinux.org/8/ALSA-2026-59216.html

Plugin Details

Severity: High

ID: 339400

File Name: alma_linux_ALSA-2026-59216.nasl

Version: 1.1

Type: Local

Published: 8/25/2026

Updated: 8/25/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.2

Percentile: 96.6

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-60005

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

CVSS Score Source: CVE-2026-56434

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-56434

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:nginx-all-modules, p-cpe:/a:alma:linux:nginx-filesystem, p-cpe:/a:alma:linux:nginx-mod-devel, p-cpe:/a:alma:linux:nginx-mod-http-image-filter, p-cpe:/a:alma:linux:nginx-mod-http-perl, p-cpe:/a:alma:linux:nginx-mod-http-xslt-filter, p-cpe:/a:alma:linux:nginx-mod-mail, p-cpe:/a:alma:linux:nginx-mod-stream, p-cpe:/a:alma:linux:nginx

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: 8/24/2026

Vulnerability Publication Date: 7/15/2026

Reference Information

CVE: CVE-2026-56434, CVE-2026-60005

CWE: 125, 824

RHSA: 2026:59216