CVE-2026-90947
Received Received - Intake

Out-of-Bounds Write in GIMP Lighting Effects Filter

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: redhat-SADP

Description
A flaw was found in GIMP. When processing a specially crafted lighting preset file, the Lighting Effects filter does not properly validate the number of light sources. This can lead to an out-of-bounds write, corrupting memory. An attacker could exploit this by convincing a user to open a malicious preset file, potentially causing a crash or enabling arbitrary code execution.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-15
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-90947
EUVD
EUVD-2026-77593

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gnome gimp *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This vulnerability is in GIMP's Lighting Effects filter. When a user opens a specially crafted lighting preset file, the filter fails to validate the number of light sources. This causes an out-of-bounds write, corrupting memory. An attacker could exploit this to crash GIMP or execute arbitrary code by tricking a user into opening the malicious file.

Detection Guidance

This vulnerability is triggered when a user opens a malicious preset file in GIMP's Lighting Effects filter. Detection requires monitoring for GIMP crashes or unusual memory corruption when processing lighting preset files. Check GIMP logs for segmentation faults or memory errors during preset file operations.

Impact Analysis

If exploited, this flaw could allow an attacker to crash your GIMP application or run malicious code on your system. This could lead to data loss, unauthorized access, or further compromise of your system, especially if you run GIMP with elevated privileges.

Compliance Impact

This vulnerability does not directly affect compliance with standards like GDPR or HIPAA. However, if exploited, it could lead to arbitrary code execution or memory corruption, potentially compromising data integrity or confidentiality. This might indirectly impact compliance if sensitive data is exposed or altered.

Mitigation Strategies

Avoid opening untrusted or unknown lighting preset files in GIMP. Update GIMP to the latest supported version if available. If no patch exists, disable the Lighting Effects filter or avoid using preset files from untrusted sources until a fix is released.

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