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AlmaLinux 10 : firefox (ALSA-2026:47101)
critical Nessus Plugin ID 333103
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Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:47101 advisory.* 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 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
Plugin Details
Severity: Critical
ID: 333103
File Name: alma_linux_ALSA-2026-47101.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 8/6/2026
Updated: 8/6/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.13
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:alma:linux:10, cpe:/o:alma:linux:10::appstream, cpe:/o:alma:linux:10::baseos, cpe:/o:alma:linux:10::highavailability, cpe:/o:alma:linux:10::nfv, cpe:/o:alma:linux:10::powertools, cpe:/o:alma:linux:10::realtime, cpe:/o:alma:linux:10::resilientstorage, cpe:/o:alma:linux:10::sap, cpe:/o:alma:linux:10::sap_hana, cpe:/o:alma:linux:10::supplementary, p-cpe:/a:alma:linux:firefox
Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/28/2026
Vulnerability Publication Date: 7/14/2026
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