CVE-2026-3778

Stack exhaustion caused by cyclic references in Foxit PDF Editor/Reader

State: Published
Severity: 6.2 Medium
Published: Apr 1, 2026
Updated: Apr 2, 2026
Reserved: Mar 8, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.2 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Foxit

Weaknesses

CWE-674 Uncontrolled Recursion

Affected Products

Product	Versions
Foxit PDF EditorFoxit Software Inc.	Versions 2025.3 and earlierAffected Versions 14.0.2 and earlierAffected Versions 13.2.2 and earlierAffected
Foxit PDF ReaderFoxit Software Inc.	Versions 2025.3 and earlierAffected

References

https://www.foxit.com/support/security-bulletins.html

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