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AlmaLinux 8 : firefox (ALSA-2026:19588)

critical Nessus Plugin ID 316378

Synopsis

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

Description

The remote AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:19588 advisory.

 * firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
 * firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
 * firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
 * firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC:
 Networking component (CVE-2026-7321)

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 firefox package.

See Also

https://errata.almalinux.org/8/ALSA-2026-19588.html

https://access.redhat.com/errata/RHSA-2026:19588

Plugin Details

Severity: Critical

ID: 316378

File Name: alma_linux_ALSA-2026-19588.nasl

Version: 1.1

Type: Local

Published: 5/22/2026

Updated: 5/22/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-7322

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

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

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

CVSS Score Source: CVE-2026-7321

Vulnerability Information

CPE: cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:firefox, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::highavailability, 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

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: 5/20/2026

Vulnerability Publication Date: 4/21/2026

Reference Information

CVE: CVE-2026-7320, CVE-2026-7321, CVE-2026-7322, CVE-2026-7323

CWE: 125, 501, 787

RHSA: 2026:19588