PT-2026-115066 · Tatsh+1 · Bincookie

CVE-2026-55246

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Published

2026-10-15

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Updated

2026-10-15

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions bincookie versions prior to 0.1.9
Description The bincookie init file() function in bincookie.h allocates a buffer based on the actual .binarycookies file length but uses the file-controlled num pages field as the loop bound for byte-swapping page sizes entries. A specially crafted file can cause the loop to read and write beyond the heap allocation. Additionally, unvalidated page sizes and cookie offsets can lead to further out-of-bounds accesses during page and cookie iteration. This may result in application crashes or heap corruption, potentially allowing for arbitrary code execution.
Recommendations Update to version 0.1.9.

Exploit

Fix

Memory Corruption

Heap Based Buffer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-55246
GHSA-22PC-XXW4-Q849

Affected Products

Bincookie