In ReadSTEGANOImage() (coders/stegano.c), the watermark Image object is not freed on three early-return paths, resulting in a definite memory leak (~13.5KB+ per invocation) that can be exploited for denial of service.
Direct leak of 13512 byte(s) in 1 object(s) allocated from:
#0 0x7f5c11e27887 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x55cdc38f65c4 in AcquireMagickMemory MagickCore/memory.c:536
#2 0x55cdc38f65eb in AcquireCriticalMemory MagickCore/memory.c:612
#3 0x55cdc3899e91 in AcquireImage MagickCore/image.c:154
{
"nvd_published_at": "2026-02-24T01:16:14Z",
"github_reviewed_at": "2026-02-24T15:33:56Z",
"cwe_ids": [
"CWE-401"
],
"severity": "MODERATE",
"github_reviewed": true
}