ZDI-26-454: GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability
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 specific flaw exists within the parsing of PSD files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Other sources
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-2026-18301.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch ZDI-26-454 - Compensating control
Because user interaction is required (victim must visit a malicious page or open a malicious PSD file), reduce exposure by blocking/limiting access to untrusted web pages and preventing users from opening untrusted PSD files.
Event History
Frequently Asked Questions
What is the severity of ZDI-26-454?
The vulnerability ZDI-26-454 has a CVSS rating of 7.8, indicating a high severity level.
How do I fix ZDI-26-454?
To address the vulnerability ZDI-26-454, users should update to the latest version of GIMP that includes the necessary patches.
What type of vulnerability is ZDI-26-454?
ZDI-26-454 is classified as an integer overflow vulnerability that can lead to remote code execution.
What is required to exploit ZDI-26-454?
Exploitation of ZDI-26-454 requires user interaction, such as visiting a malicious webpage or opening a malicious PSD file.
Which software is affected by ZDI-26-454?
The vulnerability ZDI-26-454 affects installations of the GIMP software.