CVE-2026-55246

bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookieinitfile in bincookie.h allocates a buffer using the actual .binarycookies file length but trusts the file-controlled numpages field as the loop bound for byte-swapping pagesizes entries. A crafted file can make the loop re...

CVE-2026-55246

The bincookie header-only binarycookies parser is vulnerable to a heap buffer overflow and out-of-bounds write in versions prior to 0.1.9 . The root cause lies in the bincookie_init_file() function within bincookie.h, which uses the file-controlled num_pages field as a loop bound for byte-swappin...

CVE-2026-55246 bincookie: Heap buffer overflow via unvalidated `num_pages` when parsing a `.binarycookies` file

bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookieinitfile in bincookie.h allocates a buffer using the actual .binarycookies file length but trusts the file-controlled numpages field as the loop bound for byte-swapping pagesizes entries. A crafted file can make the loop re...