(0Day) pdfforge PDF Architect App Object Out-Of-Bounds Read Remote Code Execution Vulnerability

August 31st, 2026

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of App objects. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

11/27/25 – ZDI reported the vulnerability to the vendor
03/23/26 – the vendor confirmed the receipt of the report and requested a 30-day extension
03/26/26 – ZDI approved on an extension until 04/26/26
06/23/26 – ZDI asked for updates
07/13/26 – ZDI notified the vendor of the intention to publish the case as 0-day advisory

-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product


Disclosure Timeline

  • 2025-11-27 - Vulnerability reported to vendor
  • 2026-08-31 - Coordinated public release of advisory
  • 2026-08-31 - Advisory Updated

Credit

soiax

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