{"id":"CVE-2026-55246","published":"2026-10-15T18:17:27.317","lastModified":"2026-10-16T20:04:29.760","description":"bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookie_init_file() in bincookie.h allocates a buffer using the actual .binarycookies file length but trusts the file-controlled num_pages field as the loop bound for byte-swapping page_sizes entries. A crafted file can make the loop read and write beyond the heap allocation, and related unvalidated page sizes and cookie_offsets can drive additional out-of-bounds accesses in page and cookie iteration. Applications that parse an attacker-supplied binarycookies file may crash or suffer heap corruption that can potentially enable code execution. This issue is fixed in version 0.1.9.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwes":["CWE-122","CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/Tatsh/bincookie/commit/bc1433c1ee4d0284750ff85c8437f1b8df91ab3b","tags":[]},{"url":"https://github.com/Tatsh/bincookie/releases/tag/v0.1.9","tags":[]},{"url":"https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849","tags":[]},{"url":"https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849","tags":[]}],"exploitRefs":[{"url":"https://github.com/Tatsh/bincookie/commit/bc1433c1ee4d0284750ff85c8437f1b8df91ab3b","tags":[]},{"url":"https://github.com/Tatsh/bincookie/releases/tag/v0.1.9","tags":[]},{"url":"https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849","tags":[]},{"url":"https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849","tags":[]}],"hasPoc":true,"ai":null}