SEPTEMBER 20, 2026
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Case File

CVE-2026-66759

HIGH · CVSS 7.1 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-07-27 · Last synced 2026-08-26

CyberRota Analysis

AI-Generated

The file-icns plugin in GIMP is vulnerable due to an out-of-bounds read when processing ICNS images, allowing attackers to exploit crafted files that contain truncated mask resources. This can lead to information disclosure of sensitive heap contents or cause a denial of service through potential crashes. Organizations using GIMP, particularly those handling untrusted image files, should prioritize patching this vulnerability to mitigate risks.

CVE
CVE-2026-66759
Severity
HIGH
CVSS
7.1
EPSS
0.25%

Original NVD Description

A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.

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