The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:25918 advisory.

    WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

    Security Fix(es):

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2026-28946)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28847)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28883)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28901)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28902)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28903)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28904)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28905)

    * webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being     enforced (CVE-2026-28907)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2026-28942)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2026-28947)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28953)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash     (CVE-2026-28955)

    * webkitgtk: An app may be able to access sensitive user data (CVE-2026-28958)

    * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash     (CVE-2026-43658)

    * webkitgtk: Processing maliciously crafted web content may prevent Content Security Policy from being     enforced (CVE-2026-43660)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

RHEL 8 : webkit2gtk3 (RHSA-2026:25918)

high Nessus Plugin ID 321098

Version 1.2

Version 1.1

Version 1.2 Jul 4, 2026, 4:43 PM CVSSv3 score source (changed from "CVE-2026-28947" to none) Plugin Feed: 202607041643
Version 1.1 Jun 15, 2026, 7:29 PM New Plugin Feed: 202606151929