CVE-2026-3778 MEDIUM

CVE-2026-3778: Stack exhaustion caused by cyclic references in Foxit PDF Editor/Reader

Vendor Foxit Software Inc.
Product Foxit PDF Editor
Weakness CWE-674
Published April 1, 2026
Last update April 2, 2026

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

The application does not detect or guard against cyclic PDF object references while handling JavaScript in PDF. When pages and annotations are crafted that reference each other in a loop, passing the document to APIs (e.g., SOAP) that perform deep traversal can cause uncontrolled recursion, stack exhaustion, and application crashes.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 2, 2026 Record updated