CVE-2026-18305
Received Received - Intake

GIMP TIF File Parsing Integer Overflow RCE

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
GIMP TIF 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 TIF 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. Was ZDI-CAN-29406.

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Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-18305
EUVD
EUVD-2026-63454

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
gnome gimp *
gnome gimp to 2.10.34 (inc)
gnome gimp From 2.10.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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Executive Summary

This vulnerability is an integer overflow issue in GIMP's TIF file parsing mechanism that can lead to remote code execution. It occurs due to insufficient validation of user-supplied data, causing an integer overflow before buffer allocation. Exploitation requires user interaction, such as opening a malicious file or visiting a malicious page.

Detection Guidance

Detecting this vulnerability requires checking the installed version of GIMP against the patched version. Use commands like 'gimp --version' to check the current version. Compare it with the patched version mentioned in the vendor's update.

Impact Analysis

If exploited, this vulnerability allows remote attackers to execute arbitrary code on your system with the same privileges as the current user. This could lead to data theft, system compromise, or further malware installation. Since user interaction is required, you are at risk if you open untrusted TIF files or visit malicious websites.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Organizations may face compliance penalties if exploited due to insufficient data security measures.

Mitigation Strategies

Immediately update GIMP to the latest patched version available from the vendor's GitLab commit. Avoid opening TIF files from untrusted sources until the update is applied.

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