CVE WatchOct 15, 2026

CVE-2026-55246

bincookie is a header-only binarycookies parser. Prior to 0.1.9, bincookie_init_file() in bincookie.h allocates a buffer using the actual .b

CVSS

7.8

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 15, 2026 · Last modified: Oct 15, 2026 · CWE-122 · CWE-787

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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