ZDI-CAN-29289: ZDI-26-453: GIMP HDR File Parsing Integer Overflow Remote Code Execution Vulnerability

Published Jul 29, 2026

Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18300.

Affected Software

1 affected component

GIMP

Event History

Jul 29, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-29289?

ZDI-CAN-29289 has a CVSS rating of 7.8, indicating a high severity level.

How do I fix ZDI-CAN-29289?

To mitigate ZDI-CAN-29289, ensure you are using the latest version of GIMP where the vulnerability has been patched.

What type of attack does ZDI-CAN-29289 enable?

ZDI-CAN-29289 enables remote code execution attacks, allowing attackers to execute arbitrary code on affected systems.

Is user interaction required for exploiting ZDI-CAN-29289?

Yes, user interaction is necessary; the target must visit a malicious page or open a malicious HDR file.

What software is affected by ZDI-CAN-29289?

The vulnerability affects installations of the GIMP software.