high7.1
CVE-2026-66759
A flaw was found in the file-icns plugin in GIMP.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Gimp | Gimp | Versions 3.0.8, 3.2.4 |
| Redhat | Enterprise Linux | Versions 6.0, 7.0, 8.0, 9.0 |