CVE-2026-78376

HighCVSS 8.8/10Last modified Nov 5, 2026

Description

A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory handling and result in memory corruption.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
WebKit	WebKit	>= 2.21.1, < *
WebKitGTK	WebKitGTK	>= 2.21.1, < *
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	—
Red Hat	Red Hat Enterprise Linux 8	—
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	—
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	—
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	—
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On	—
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	—
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	—
Red Hat	Red Hat Enterprise Linux 9	—
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	—
Red Hat	Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions	—
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	—
Red Hat	Red Hat Enterprise Linux 6	—
Red Hat	Red Hat Enterprise Linux 7	—

References

Timeline

Published: Aug 24, 2026
Last modified: Nov 5, 2026
NVD status: Awaiting Analysis

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