SUSE SLES15: WebKitGTK-4.0-lang / WebKitGTK-4.1-lang / WebKitGTK-6.0-lang / etc (SUSE-SU-2026:4868-1)

high Nessus Plugin ID 371087

Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4868-1 advisory.

Security issues fixed:

- CVE-2026-64718: webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (bsc#1277001).
- CVE-2026-65335: webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash (bsc#1277015).
- CVE-2026-78376: use-after-free of `JSCValue` function parameters (bsc#1276418).
- CVE-2026-83596: webkitgtk: Validate the full FeatureList array once in OpenTypeVerticalData findFeature (bsc#1277755).

Non security issue fixed:

- libjavascriptcoregtk-4_0-18: JSGlobalContextCreate() aborts on aarch64 64 KB-page kernel (bsc#1285528).
- Build with -DUSE_64KB_PAGE_BLOCK=ON on aarch64 (bsc#1285528).

Tenable has extracted the preceding description block directly from the SUSE 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.

Plugin Details

Severity: High

ID: 371087

File Name: suse_SU-2026-4868-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 10/23/2026

Updated: 10/23/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93.19

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-9983

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:15, p-cpe:/a:novell:suse_linux:libjavascriptcoregtk-4_0-18, p-cpe:/a:novell:suse_linux:libjavascriptcoregtk-4_1-0, p-cpe:/a:novell:suse_linux:libjavascriptcoregtk-6_0-1, p-cpe:/a:novell:suse_linux:libwebkit2gtk-4_0-37, p-cpe:/a:novell:suse_linux:libwebkit2gtk-4_1-0, p-cpe:/a:novell:suse_linux:libwebkitgtk-6_0-4, p-cpe:/a:novell:suse_linux:typelib-1_0-javascriptcore-4_0, p-cpe:/a:novell:suse_linux:typelib-1_0-javascriptcore-4_1, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2-4_0, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2-4_1, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2webextension-4_0, p-cpe:/a:novell:suse_linux:typelib-1_0-webkit2webextension-4_1, p-cpe:/a:novell:suse_linux:webkit2gtk-4_0-injected-bundles, p-cpe:/a:novell:suse_linux:webkit2gtk-4_1-injected-bundles, p-cpe:/a:novell:suse_linux:webkit2gtk3-devel, p-cpe:/a:novell:suse_linux:webkit2gtk3-soup2-devel, p-cpe:/a:novell:suse_linux:webkitgtk-4.0-lang, p-cpe:/a:novell:suse_linux:webkitgtk-4.1-lang, p-cpe:/a:novell:suse_linux:webkitgtk-6.0-lang, p-cpe:/a:novell:suse_linux:webkitgtk-6_0-injected-bundles

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2026

Vulnerability Publication Date: 5/27/2026

Reference Information

CVE: CVE-2026-64715, CVE-2026-64718, CVE-2026-65335, CVE-2026-78376, CVE-2026-83596, CVE-2026-9983, CVE-2026-9998

SuSE: SUSE-SU-2026:4868-1

Detections

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