CVE-2026-106971: Integer Overflow

Published Oct 28, 2026

Updated

An integer overflow in the MessagePack\BufferUnpacker component of rybakit/msgpack v0.11.0 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Affected Software

1 affected component

packagist/rybakit/msgpack=0.11.0

Event History

Oct 28, 2026

CVE Published

via MITRE·12:00 AM

Data Sourced

via MITRE·12:00 AM

Description

Frequently Asked Questions

Who is exposed to this denial-of-service issue?

Applications using the MessagePack\BufferUnpacker component in rybakit/msgpack v0.11.0 are exposed when they process attacker-controlled MessagePack input.

What does an attacker need to exploit the issue?

An attacker needs to provide a crafted input to the vulnerable MessagePack\BufferUnpacker component. The stated impact is denial of service through an integer overflow.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co

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