CVE-2026-3778
Received Received - Intake

Uncontrolled Recursion in PDF JavaScript Causes Application Crash

Publication date: 2026-04-01

Last updated on: 2026-04-14

Assigner: Foxit

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.

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Meta Information

Published
2026-04-01
Last Modified
2026-04-14
Generated
2026-07-06
AI Q&A
2026-04-01
EPSS Evaluated
2026-07-05
NVD
CVE-2026-3778
EUVD
EUVD-2026-17757

Affected Vendors & Products

Showing 12 associated CPEs
Vendor Product Version / Range
foxit pdf_editor From 2023.1.0.15510 (inc) to 2023.3.0.23028 (inc)
foxit pdf_editor From 2024.1.0.23997 (inc) to 2024.4.1.27687 (inc)
foxit pdf_editor to 13.2.2.24014 (inc)
foxit pdf_editor From 14.0.0.33046 (inc) to 14.0.2.33402 (inc)
foxit pdf_editor From 2025.1.0.27937 (inc) to 2025.3.0.35737 (inc)
foxit pdf_reader to 2025.3.0.35737 (inc)
foxit pdf_editor From 2023.1.0.55583 (inc) to 2023.3.0.63083 (inc)
foxit pdf_editor From 2024.1.0.63682 (inc) to 2024.4.1.66479 (inc)
foxit pdf_editor to 13.2.2.63349 (inc)
foxit pdf_editor From 14.0.0.68868 (inc) to 14.0.2.69164 (inc)
foxit pdf_editor From 2025.1.0.66692 (inc) to 2025.3.0.69570 (inc)
foxit pdf_reader to 2025.3.0.69570 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-674 The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

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Executive Summary

This vulnerability occurs because the application does not detect or prevent cyclic references between PDF objects when handling JavaScript within PDFs.

Specifically, if pages and annotations in a PDF reference each other in a loop, and the document is passed to APIs that perform deep traversal (such as SOAP APIs), this can cause uncontrolled recursion.

The uncontrolled recursion leads to stack exhaustion and ultimately causes the application to crash.

Impact Analysis

The primary impact of this vulnerability is that it can cause the affected application to crash due to stack exhaustion caused by uncontrolled recursion.

This denial of service can disrupt normal operations, potentially leading to downtime or loss of availability of the application handling the PDF documents.

Mitigation Strategies

To mitigate this vulnerability, users are advised to update their Foxit PDF Reader and Editor applications to the latest versions.

Updates can be obtained through the application's built-in update feature or by downloading the latest versions from the Foxit website.

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