Bug 2521858 (CVE-2026-78376) - CVE-2026-78376 webkitgtk: use-after-free of JSCValue function parameters
Summary: CVE-2026-78376 webkitgtk: use-after-free of JSCValue function parameters
Keywords:
Status: NEW
Alias: CVE-2026-78376
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2521961 2521962
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-24 13:14 UTC by OSIDB Bzimport
Modified: 2026-09-30 19:39 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:69098 0 None None None 2026-09-21 04:56:09 UTC
Red Hat Product Errata RHSA-2026:74084 0 None None None 2026-09-30 19:39:26 UTC

Description OSIDB Bzimport 2026-08-24 13:14:52 UTC 
A use-after-free issue was addressed with improved memory handling. This issue does not affect Apple platforms. Processing maliciously crafted web content may lead to memory corruption.
Comment 2 Jon Orris 2026-09-21 04:56:08 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:69098 https://access.redhat.com/errata/RHSA-2026:69098
Comment 3 Jon Orris 2026-09-30 19:39:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:74084 https://access.redhat.com/errata/RHSA-2026:74084
Note You need to log in before you can comment on or make changes to this bug.