CVE-2026-59088
Received Received - Intake

Integer Overflow in GIMP via FLI File Processing

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: Red Hat, Inc.

Description
A flaw was found in GIMP. A signed integer overflow vulnerability exists in the `file-fli` plugin when processing FLI image files. This occurs due to an incorrect calculation during memory allocation for image buffers, where the multiplication of image width and height can exceed the maximum integer value. A remote attacker could exploit this by tricking a user into opening a specially crafted FLI file, leading to the application crashing and resulting in a denial of service.

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-59088
EUVD
EUVD-2026-55262

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
gnome gimp *
gnome gimp 3.2.4

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

CVE-2026-59088 is a signed integer overflow vulnerability in GIMP's FLI file processing plugin. It occurs when the plugin calculates memory allocation by multiplying image width and height. If both dimensions are set to the maximum 16-bit value (65535), their product exceeds the maximum 32-bit signed integer limit, causing undefined behavior and application crashes.

Detection Guidance

Detecting this vulnerability requires checking for GIMP installations and monitoring for crashes when processing FLI files. Inspect GIMP versions for 3.2.4 or affected builds. Use system logs to identify crashes during FLI file handling. No direct commands detect the overflow itself, but monitoring application crashes during FLI file processing may indicate exploitation.

Impact Analysis

This vulnerability allows a remote attacker to crash GIMP by tricking a user into opening a specially crafted FLI file. The crash results in a denial of service, preventing the user from using the application until it is restarted. The attack requires user interaction and does not allow code execution or data theft.

Mitigation Strategies

Avoid opening FLI files from untrusted sources. Update GIMP to the latest patched version if available. Disable the file-fli plugin if not needed. Monitor GIMP processes for crashes when handling FLI files. Implement user awareness training to prevent opening suspicious files.

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