Detections
Analytics
AlmaLinux 8 : firefox (ALSA-2026:89756)
high Nessus Plugin ID 375425
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-2026:89756 advisory.* libexpat: denial of service via crafted XML input (CVE-2026-45186)
* firefox: thunderbird: Privilege escalation in the Application Update component (CVE-2026-109704)
* firefox: Use-after-free in the XML component (CVE-2026-109718)
* firefox: Information disclosure in the PDF Viewer component (CVE-2026-109742)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109715)
* firefox: firefox: Sandbox escape via incorrect boundary conditions in Win32 widget (CVE-2026-109740)
* firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-109706)
* firefox: Use-after-free in the Crash Reporting component (CVE-2026-109713)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109724)
* firefox: Sandbox escape due to uninitialized memory in the DOM: Web Serial component (CVE-2026-109745)
* firefox: Mitigation bypass in the File Handling component (CVE-2026-109782)
* firefox: Information disclosure, privilege escalation in the Security: Process Sandboxing component (CVE-2026-109709)
* firefox: Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component (CVE-2026-109705)
* firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-109738)
* firefox: Use-after-free in the Storage: Bucket File System component (CVE-2026-109741)
* firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-109729)
* firefox: Other issue in the DOM: File component (CVE-2026-109744)
* firefox: Incorrect boundary conditions in the JavaScript Engine component (CVE-2026-109716)
* firefox: Race condition, use-after-free in the Graphics: CanvasWebGL component (CVE-2026-109719)
* firefox: Incorrect boundary conditions in the Layout component (CVE-2026-109753)
* firefox: Integer overflow in the Layout: Text and Fonts component (CVE-2026-109723)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109733)
* firefox: Sandbox escape due to incorrect boundary conditions in the Networking component (CVE-2026-109708)
* firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-109717)
* firefox: Use-after-free in the DOM: Workers component (CVE-2026-109752)
* firefox: Sandbox escape due to use-after-free in the Networking component (CVE-2026-109707)
* firefox: JIT miscompilation in the JavaScript: WebAssembly component (CVE-2026-109720)
* firefox: Use-after-free in the SVG component (CVE-2026-109726)
* firefox: Integer overflow in the Graphics component (CVE-2026-109730)
* firefox: Use-after-free in the Audio/Video component (CVE-2026-109727)
* firefox: Mitigation bypass in the Enterprise Policies component (CVE-2026-109737)
* firefox: Use-after-free in the DOM: Streams component (CVE-2026-109732)
* firefox: Information disclosure in the Networking component (CVE-2026-109751)
* firefox: Use-after-free in the DOM: Core & HTML component (CVE-2026-109725)
* firefox: Sandbox escape due to uninitialized memory in the Graphics component (CVE-2026-109712)
* firefox: Use-after-free in the Graphics: Canvas2D component (CVE-2026-109711)
* firefox: Frame poisoning in the Layout component (CVE-2026-109736)
* firefox: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-109722)
* firefox: Use-after-free in the DOM: Animation component (CVE-2026-109728)
* firefox: Incorrect boundary conditions in the JavaScript Engine: JIT component (CVE-2026-109721)
* firefox: Privilege escalation in the Panning and Zooming component (CVE-2026-109743)
Bug Fix(es) and Enhancement(s):
* Firefox ESR 153 rebase [rhel-8.10.z] (JIRA:RHEL-175143)
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: High
ID: 375425
File Name: alma_linux_ALSA-2026-89756.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 11/3/2026
Updated: 11/3/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.3
Percentile: 96.11
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-2026-45186
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
Vulnerability Information
CPE: cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::realtime, 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, p-cpe:/a:alma:linux:firefox
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: 10/26/2026
Vulnerability Publication Date: 5/10/2026
Reference Information
CVE: CVE-2026-109704, CVE-2026-109705, CVE-2026-109706, CVE-2026-109707, CVE-2026-109708, CVE-2026-109709, CVE-2026-109711, CVE-2026-109712, CVE-2026-109713, CVE-2026-109715, CVE-2026-109716, CVE-2026-109717, CVE-2026-109718, CVE-2026-109719, CVE-2026-109720, CVE-2026-109721, CVE-2026-109722, CVE-2026-109723, CVE-2026-109724, CVE-2026-109725, CVE-2026-109726, CVE-2026-109727, CVE-2026-109728, CVE-2026-109729, CVE-2026-109730, CVE-2026-109732, CVE-2026-109733, CVE-2026-109736, CVE-2026-109737, CVE-2026-109738, CVE-2026-109740, CVE-2026-109741, CVE-2026-109742, CVE-2026-109743, CVE-2026-109744, CVE-2026-109745, CVE-2026-109751, CVE-2026-109752, CVE-2026-109753, CVE-2026-109782, CVE-2026-45186