PT-2026-65101 · Red Hat · Red Hat Enterprise Linux 6+3

CVE-2026-66759

·

Published

2026-07-27

·

Updated

2026-07-27

CVSS v3.1

7.1

High

VectorAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
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.

Exploit

Fix

Out of bounds Read

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-66759

Affected Products

Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9