Rocky Linux 10.2 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2026_65159)

critical Nessus Plugin ID 356978

Synopsis

The Rocky Linux host is missing one or more security updates.

Description

The Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-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 CIQ 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 packages based on the guidance in CIQ advisory crlsa-2026_65159.

Plugin Details

Severity: Critical

ID: 356978

File Name: ciq_rocky_linux_10_2_crlsa-2026_65159.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.35

Vendor

Vendor Severity: Unknown

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

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/9/2026

Vulnerability Publication Date: 8/17/2026

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

Detections

Analytics