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AlmaLinux 9 : webkit2gtk3 (ALSA-2026:42062)

high Nessus Plugin ID 328795

Synopsis

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

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:42062 advisory.

 * Mozilla: Arbitrary JavaScript execution in PDF.js (CVE-2024-4367)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-39872)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43663)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43676)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43699)
 * webkitgtk: webkitgtk: A malicious website may process restricted web content outside the sandbox (CVE-2026-43701)
 * webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43705)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43707)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43712)
 * webkitgtk: webkitgtk: Visiting a website may leak sensitive data (CVE-2026-43713)
 * webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43715)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43716)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43720)
 * webkitgtk: webkitgtk: A malicious website may silently hijack clipboard data (CVE-2026-43721)
 * webkitgtk: webkitgtk: A malicious website may process restricted web content outside the sandbox (CVE-2026-43725)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43726)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43727)
 * webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption (CVE-2026-43731)
 * webkitgtk: webkitgtk: Maliciously crafted web content may disclose sensitive user information (CVE-2026-43732)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43734)
 * webkitgtk: webkitgtk: Maliciously crafted web content may disclose process memory (CVE-2026-43740)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43742)
 * webkitgtk: webkitgtk: Maliciously crafted web content may cause unexpected process crash (CVE-2026-43745)

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 packages.

See Also

https://access.redhat.com/errata/RHSA-2026:42062

https://errata.almalinux.org/9/ALSA-2026-42062.html

Plugin Details

Severity: High

ID: 328795

File Name: alma_linux_ALSA-2026-42062.nasl

Version: 1.1

Type: Local

Published: 7/21/2026

Updated: 7/21/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

Percentile: 99.86

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2024-4367

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:webkit2gtk3-devel, p-cpe:/a:alma:linux:webkit2gtk3-jsc-devel, p-cpe:/a:alma:linux:webkit2gtk3-jsc, p-cpe:/a:alma:linux:webkit2gtk3

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: 7/20/2026

Vulnerability Publication Date: 5/7/2024

Reference Information

CVE: CVE-2024-4367, CVE-2026-39872, CVE-2026-43663, CVE-2026-43676, CVE-2026-43699, CVE-2026-43701, CVE-2026-43705, CVE-2026-43707, CVE-2026-43712, CVE-2026-43713, CVE-2026-43715, CVE-2026-43716, CVE-2026-43720, CVE-2026-43721, CVE-2026-43725, CVE-2026-43726, CVE-2026-43727, CVE-2026-43731, CVE-2026-43732, CVE-2026-43734, CVE-2026-43740, CVE-2026-43742, CVE-2026-43745

CWE: 119, 125, 20, 22, 284, 416, 732, 754, 787, 843

RHSA: 2026:42062