CVE-2026-66759

Published: Lug 27, 2026 Last Modified: Lug 27, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 7,1

Source: [email protected]

Attack Vector: local

Attack Complexity: low

Privileges Required: none

User Interaction: required

Scope: unchanged

Confidentiality: high

Integrity: none

Availability: high

Description

AI Translation Available

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.