RockyLinux 8 : firefox (RLSA-2026:47105)

critical Nessus Plugin ID 330691

Synopsis

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

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:47105 advisory.

* libaom: libaom: heap buffer overflow in AV1 encoder first-pass stats buffer via LAP mode (CVE-2026-56208)

* firefox: thunderbird: Site isolation issue in the DOM: Navigation component (CVE-2026-15719)

* firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-15718)

* firefox: thunderbird: Mitigation bypass in the Enterprise Policies component (CVE-2026-16390)

* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: cubeb component (CVE-2026-16350)

* firefox: thunderbird: Information disclosure in the Storage: IndexedDB component (CVE-2026-16391)

* firefox: thunderbird: Site isolation issue in the Networking: HTTP component (CVE-2026-16375)

* firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16356)

* firefox: thunderbird: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-16363)

* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.13 and Firefox 153 (CVE-2026-16412)

* firefox: thunderbird: Same-origin policy bypass in the Networking: DNS component (CVE-2026-16381)

* firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-16355)

* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38 and Firefox ESR 140.13 (CVE-2026-16361)

* firefox: thunderbird: Sandbox escape due to use-after-free in the Disability Access APIs component (CVE-2026-16352)

* firefox: thunderbird: Incorrect boundary conditions in the JavaScript: WebAssembly component (CVE-2026-16368)

* firefox: thunderbird: Mitigation bypass in the PDF Viewer component (CVE-2026-16377)

* firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.38, Firefox ESR 140.13 and Firefox 153 (CVE-2026-16360)

* firefox: thunderbird: Use-after-free in the WebRTC: Audio/Video component (CVE-2026-16362)

* firefox: thunderbird: Site isolation issue in the Graphics: WebRender component (CVE-2026-16358)

* firefox: thunderbird: Site isolation issue in the Networking component (CVE-2026-16387)

* firefox: thunderbird: Same-origin policy bypass in the DOM: Navigation component (CVE-2026-16349)

* firefox: thunderbird: Incorrect boundary conditions in the Graphics component (CVE-2026-16357)

* firefox: thunderbird: Sandbox escape due to use-after-free in the DOM: Navigation component (CVE-2026-16351)

* firefox: thunderbird: Privilege escalation in the DOM: Navigation component (CVE-2026-16371)

* firefox: thunderbird: Privilege escalation in the DOM: Content Processes component (CVE-2026-16379)

* firefox: thunderbird: Information disclosure in the Graphics: ImageLib component (CVE-2026-16354)

* firefox: thunderbird: Information disclosure in the Framework component in DevTools (CVE-2026-16374)

* firefox: thunderbird: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-16359)

* firefox: thunderbird: Mitigation bypass in the DOM: Networking component (CVE-2026-16383)

* firefox: thunderbird: Integer overflow in the JavaScript: WebAssembly component (CVE-2026-16369)

* firefox: thunderbird: Invalid pointer in the DOM: Bindings (WebIDL) component (CVE-2026-16353)

* firefox: thunderbird: Privilege escalation in WebExtensions (CVE-2026-16396)

* firefox: thunderbird: Information disclosure in the Networking: WebSockets component (CVE-2026-16405)

Tenable has extracted the preceding description block directly from the RockyLinux 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, firefox-debuginfo and / or firefox-debugsource packages.

Plugin Details

Severity: Critical

ID: 330691

File Name: rocky_linux_RLSA-2026-47105.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 7/29/2026

Updated: 7/29/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.84

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-16412

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:firefox-debuginfo, p-cpe:/a:rocky:linux:firefox-debugsource, p-cpe:/a:rocky:linux:firefox

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-15718, CVE-2026-15719, CVE-2026-16349, CVE-2026-16350, CVE-2026-16351, CVE-2026-16352, CVE-2026-16353, CVE-2026-16354, CVE-2026-16355, CVE-2026-16356, CVE-2026-16357, CVE-2026-16358, CVE-2026-16359, CVE-2026-16360, CVE-2026-16361, CVE-2026-16362, CVE-2026-16363, CVE-2026-16368, CVE-2026-16369, CVE-2026-16371, CVE-2026-16374, CVE-2026-16375, CVE-2026-16377, CVE-2026-16379, CVE-2026-16381, CVE-2026-16383, CVE-2026-16387, CVE-2026-16390, CVE-2026-16391, CVE-2026-16396, CVE-2026-16405, CVE-2026-16412, CVE-2026-56208

Detections

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