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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
red hat:red hat enterprise linux 9
red hat:red hat enterprise linux 9.6 extended update support
red hat:red hat enterprise linux 6
red hat:red hat enterprise linux 9.2 update services for sap solutions
red hat:red hat enterprise linux 8
webkit:webkit
red hat:red hat enterprise linux 7
red hat:red hat enterprise linux 7 extended lifecycle support
webkitgtk:webkitgtk
References 10
https://access.redhat.com/security/cve/CVE-2026-78376
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2521858
secalert@redhat.com
https://github.com/WebKit/WebKit/pull/72142
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:69098
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:74084
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:89821
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:89822
RHSA-2026:89822
https://access.redhat.com/errata/RHSA-2026:91631
RHSA-2026:91631
https://access.redhat.com/errata/RHSA-2026:92216
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:92339
secalert@redhat.com