RHEL 10 : firefox (RHSA-2026:19160)

critical Nessus Plugin ID 315384

Synopsis

The remote Red Hat host is missing one or more security updates for firefox.

Description

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:19160 advisory.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

* firefox: Other issue in the WebRTC component (CVE-2026-8094)

* firefox: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 (CVE-2026-8092)

* firefox: Use-after-free in the DOM: Networking component (CVE-2026-8090)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 RHEL firefox package based on the guidance in RHSA-2026:19160.

Plugin Details

Severity: Critical

ID: 315384

File Name: redhat-RHSA-2026-19160.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/19/2026

Updated: 5/19/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

Vendor

Vendor Severity: Important

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-2026-8094

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:firefox, cpe:/o:redhat:enterprise_linux:10.2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/19/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-8090, CVE-2026-8092, CVE-2026-8094

CWE: 787, 825

RHSA: 2026:19160

Detections

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