CVE-2026-66759 | BDVDB-2026-353121 Detail

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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Exploit#

History#

1. Version 12026-07-27Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.