CVE-2026-109279
Received Received - Intake

Heap Buffer Overflow in ImageMagick Due to Race Condition

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: VulnCheck

Description
ImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 lacks proper synchronization when the security policy is accessed, so simultaneous reads and writes of the policy by multiple threads trigger a race condition that causes a heap buffer over-write. An attacker able to induce concurrent security policy access can crash the application, causing a denial of service.

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Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-12
AI Q&A
2026-10-12
EPSS Evaluated
N/A
NVD
CVE-2026-109279
EUVD
EUVD-2026-97581

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ImageMagick ImageMagick 7.0.0-0
ImageMagick ImageMagick 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

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Executive Summary

This vulnerability is a race condition in ImageMagick versions before 6.9.13-57 and 7.x before 7.1.2-32. It occurs when multiple threads access the security policy simultaneously, causing a heap buffer overflow due to improper synchronization. This can lead to application crashes and denial of service.

Detection Guidance

Detecting this vulnerability requires checking the installed version of ImageMagick. Run 'convert --version' or 'magick --version' to see the version. If it is below 6.9.13-57 or 7.1.2-32, the system is vulnerable.

Impact Analysis

An attacker could exploit this flaw to crash the ImageMagick application, resulting in a denial of service. This may disrupt services relying on ImageMagick for image processing, causing downtime or loss of functionality.

Compliance Impact

This vulnerability does not directly impact compliance with GDPR or HIPAA as it only causes a denial of service by crashing the application. It does not affect confidentiality, integrity, or data processing requirements central to these standards.

Mitigation Strategies

Upgrade ImageMagick to version 6.9.13-57 or later for the 6.x branch, or 7.1.2-32 or later for the 7.x branch. This fixes the race condition in security policy handling.

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