CVE-2026-55246
highbincookie is a header-only binarycookies parser.
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Tatsh/bincookie/commit/bc1433c1ee4d0284750ff85c8437f1b8df91ab3b security-advisories@github.com
- https://github.com/Tatsh/bincookie/releases/tag/v0.1.9 security-advisories@github.com
- https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849 security-advisories@github.com
- https://github.com/Tatsh/bincookie/security/advisories/GHSA-22pc-xxw4-q849 134c704f-9b21-4f2e-91b3-4a467353bcc0