PT-2026-54004 · Unknown · Messagepack
CVE-2026-57585
·
Published
2026-06-19
·
Updated
2026-09-03
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
MessagePack versions prior to 1.2.1
Description
An out-of-bounds read occurs when an Unpacker is reused after an error has been caught, which can lead to a denial of service (DoS) attack. If the Unpacker is used repeatedly following such an error, the process may crash with a SEGV (segmentation fault), which is a specific error that occurs when a program attempts to access a memory location that it is not allowed to access.
Recommendations
Update to version 1.2.1.
Exploit
Fix
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Messagepack