Detections
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AlmaLinux 8 : nodejs:20 (ALSA-2026:8339)

high Nessus Plugin ID 306720

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-2026:8339 advisory.

 * minimatch: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)
 * minimatch: Minimatch: Denial of Service via catastrophic backtracking in glob expressions (CVE-2026-27904)
 * nghttp2: nghttp2: Denial of Service via malformed HTTP/2 frames after session termination (CVE-2026-27135)
 * Node.js: Node.js: Denial of Service due to crafted HTTP `__proto__` header (CVE-2026-21710)

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://errata.almalinux.org/8/ALSA-2026-8339.html

https://access.redhat.com/errata/RHSA-2026:8339

Plugin Details

Severity: High

ID: 306720

File Name: alma_linux_ALSA-2026-8339.nasl

Version: 1.1

Type: Local

Published: 4/16/2026

Updated: 4/16/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-26996

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:npm, p-cpe:/a:alma:linux:nodejs-full-i18n, cpe:/o:alma:linux:8::realtime, p-cpe:/a:alma:linux:nodejs-docs, p-cpe:/a:alma:linux:nodejs, cpe:/o:alma:linux:8::baseos, p-cpe:/a:alma:linux:nodejs-devel, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:nodejs-packaging-bundler, p-cpe:/a:alma:linux:nodejs-packaging, cpe:/o:alma:linux:8::supplementary, cpe:/o:alma:linux:8::highavailability, p-cpe:/a:alma:linux:nodejs-nodemon, cpe:/o:alma:linux:8::powertools

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 2/18/2026

Reference Information

CVE: CVE-2026-21710, CVE-2026-26996, CVE-2026-27135, CVE-2026-27904

CWE: 1333, 617, 843

RHSA: 2026:8339