CVE-2026-55246
bincookie is a header-only binarycookies parser
- Risk score
- 49/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 15 Oct 2026
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What to know
- What it is
- 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 bey…
- Affected
- See advisory
- Fix
- Upgrade the product to 0.1.9 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.8 high
References
Original 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.
Last activity 15 Oct 2026. Patch Forecast updates every hour.