CVE-2026-18306
Received Received - Intake

Integer Overflow in GIMP SGI File Parsing Leads to RCE

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
GIMP SGI 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 SGI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29396.

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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-2026-18306
EUVD
EUVD-2026-63455

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
gnome gimp *
gimp gimp From 2026-04-17 (inc) to 2026-07-29 (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 is an integer overflow vulnerability in GIMP's SGI file parsing. It occurs when GIMP fails to properly validate user-supplied data during file parsing, leading to an integer overflow before memory writing. Attackers can exploit this to execute arbitrary code on the affected system if a user opens a malicious file or visits a malicious page.

Detection Guidance

Detecting this vulnerability requires checking the version of GIMP installed on your system. If you are running a version of GIMP prior to the patched version, the system is vulnerable. Commands like 'gimp --version' can help identify the installed version.

Impact Analysis

If exploited, this vulnerability allows attackers to run arbitrary code on your system with the same privileges as the GIMP process. This could lead to data theft, system compromise, or further malware installation. User interaction is required, so avoiding untrusted files or websites mitigates the risk.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's integrity and confidentiality requirements or HIPAA's safeguards for protected health information. Organizations must patch GIMP promptly to maintain compliance and prevent potential data breaches.

Mitigation Strategies

Immediately update GIMP to the latest patched version to address the integer overflow issue in SGI file parsing. Avoid opening SGI files from untrusted sources until the update is applied.

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