Is there a public exploit for CVE-2026-78376?

No public exploit for CVE-2026-78376 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-78376?

CVE-2026-78376 scores CVSS 8.8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.47%.

What does CVE-2026-78376 affect?

CVE-2026-78376 affects WebKitGTK, Webkit, Red Hat Webkit, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 9.6 Extended Update Support, webkitgtk, Red Hat Enterprise Linux 8.8 Telecommunications Update Service.

8.8 High

A flaw was found in WebKitGTK.

CVE-2026-78376

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.

Assessment

CVSS: 8.8 (v3.1)
Severity: High
EPSS: 0.47% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 24 August 2026
Last updated: 2 November 2026
Affected: Red Hat · WebKitGTK · Webkit · Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
Assigner: redhat

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

At the source

EUVD (ENISA)

References

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