Nixpkgs security tracker

Untriaged

Permalink CVE-2026-78376

8.8 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): Required (R)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): None (N)
Modified User Interaction (MUI): Required (R)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

created 1 week, 4 days ago Activity log

Created suggestion 1 week, 4 days ago

Webkitgtk: use-after-free of jscvalue function parameters

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.

References

https://access.redhat.com/security/cve/CVE-2026-78376 x_refsource_REDHATvdb-entry
RHBZ#2521858 x_refsource_REDHATissue-tracking
https://github.com/WebKit/WebKit/pull/72142

Affected products

webkitgtk

webkitgtk3

webkitgtk4

webkit2gtk3

Matching in nixpkgs

pkgs.webkitgtk_4_1

Web content rendering engine, GTK port

nixos-unstable 2.52.4+abi=4.1
- nixpkgs-unstable 2.52.4+abi=4.1
- nixos-unstable-small 2.52.6+abi=4.1
nixos-26.05 2.52.4+abi=4.1
- nixos-26.05-small 2.52.5+abi=4.1
- nixpkgs-26.05-darwin 2.52.4+abi=4.1

pkgs.webkitgtk_6_0