CVE-2026-92183
Received Received - Intake

Stack-based Buffer Overflow in GIMP APNG File Parsing

Vulnerability report for CVE-2026-92183, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-10-21

Last updated on: 2026-10-23

Assigner: Zero Day Initiative

Description

GIMP APNG File Parsing Stack-based Buffer 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 APNG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29400.

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Meta Information

Published
2026-10-21
Last Modified
2026-10-23
Generated
2026-11-10
AI Q&A
2026-10-22
EPSS Evaluated
2026-11-09
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
GIMP GIMP 3.2.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

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Executive Summary

This is a stack-based buffer overflow vulnerability in GIMP that allows remote attackers to execute arbitrary code. It occurs when parsing APNG files due to improper validation of user-supplied data before copying it to a stack buffer. 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 and verifying if it is vulnerable. Use the command 'gimp --version' to check the version. If the version is below the patched release, the system is vulnerable. Additionally, monitor for suspicious APNG files or unusual processes after opening files.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system with the same privileges as the GIMP process. This could lead to unauthorized access, data theft, or further compromise of your system. User interaction is required for exploitation.

Mitigation Strategies

Immediately update GIMP to the latest patched version available from the vendor's GitLab commit. Avoid opening APNG files from untrusted sources. Disable automatic file opening in GIMP if possible. Ensure your system has the latest security patches applied.

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