CVE-2026-66759

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-62958 libriscv is a RISC-V sandbox and emulator. CWE-125
• CVE-2026-119338 Tesseract is an open source OCR engine. CWE-125
• CVE-2026-119299 gopacket provides packet processing capabilities for Go. CWE-125
• CVE-2026-119722 Blender before 4.5.15 and 5.x before 5.2.3 contains a heap out-of-bounds access… CWE-125
• CVE-2026-119721 Blender before 4.5.15 and 5.x before 5.2.3 contains an out-of-bounds read vulnerability… CWE-125
• CVE-2026-119720 Blender before 4.5.15 and 5.x before 5.2.3 contains a heap out-of-bounds read… CWE-125
• CVE-2026-104063 Scribus before 1.6.7 contains an out-of-bounds read vulnerability in the Mac PICT image… CWE-125
• CVE-2026-61627 libass is a portable subtitle renderer for the `ASS`/SSA (Advanced Substation… CWE-125