Detections
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AlmaLinux 10 : thunderbird (ALSA-2026:65159)
critical Nessus Plugin ID 344038
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-2026:65159 advisory.* firefox: thunderbird: Site isolation issue in the Graphics: CanvasWebGL component (CVE-2026-74934)
* firefox: thunderbird: Privilege escalation in the Networking: Cookies component (CVE-2026-74953)
* firefox: thunderbird: Internally found bugs fixed in Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154 (CVE-2026-74987)
* firefox: thunderbird: Information disclosure in the Graphics component (CVE-2026-74948)
* firefox: thunderbird: Information disclosure in the DOM: UI Events & Focus Handling component (CVE-2026-74971)
* firefox: Race condition, use-after-free in the Graphics component (CVE-2026-74973)
* firefox: thunderbird: Internally found bugs fixed in Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1 and Firefox 154 (CVE-2026-74990)
* firefox: thunderbird: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-74936)
* firefox: thunderbird: Site isolation issue in the WebExtensions component (CVE-2026-74960)
* firefox: thunderbird: Mitigation bypass in the Storage: Cache API component (CVE-2026-74959)
* firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-74976)
* firefox: thunderbird: Same-origin policy bypass in the Graphics: ImageLib component (CVE-2026-74974)
* firefox: thunderbird: Mitigation bypass in the Safe Browsing component (CVE-2026-74957)
* firefox: Privilege escalation in the Remote Settings Client component (CVE-2026-74942)
* firefox: thunderbird: Privilege escalation in the DOM: Navigation component (CVE-2026-74939)
* firefox: thunderbird: Information disclosure in the DOM: Push Subscriptions component (CVE-2026-74972)
* firefox: thunderbird: Information disclosure in the Graphics: Text component (CVE-2026-74945)
* firefox: thunderbird: Same-origin policy bypass in the Networking: Cookies component (CVE-2026-74963)
* firefox: Integer overflow in the Graphics component (CVE-2026-74964)
* firefox: Site isolation issue in the Networking: Cookies component (CVE-2026-74962)
* firefox: thunderbird: Privilege escalation in the DOM: Networking component (CVE-2026-74935)
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 thunderbird package.See Also
Plugin Details
Severity: Critical
ID: 344038
File Name: alma_linux_ALSA-2026-65159.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 9/9/2026
Updated: 9/9/2026
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.35
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-2026-74936
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:thunderbird
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: 9/8/2026
Vulnerability Publication Date: 8/18/2026
Reference Information
CVE: CVE-2026-74934, CVE-2026-74935, CVE-2026-74936, CVE-2026-74939, CVE-2026-74942, CVE-2026-74945, CVE-2026-74948, CVE-2026-74953, CVE-2026-74957, CVE-2026-74959, CVE-2026-74960, CVE-2026-74962, CVE-2026-74963, CVE-2026-74964, CVE-2026-74971, CVE-2026-74972, CVE-2026-74973, CVE-2026-74974, CVE-2026-74976, CVE-2026-74987, CVE-2026-74990