CVE-2026-106971

CVSS 7.5 (high) · published 2026-10-28

An integer overflow in the MessagePack\BufferUnpacker component of rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service via crafted MessagePack input when the application runs on 32-bit PHP

Weakness: CWE-190, CWE-400

Source: NVD CVE-2026-106971

References

• https://github.com/diptendukar/security-advisories/blob/main/CVE-2026-106971.md
• https://github.com/rybakit/msgpack.php
• https://github.com/rybakit/msgpack.php/releases/tag/v0.11.0
• https://github.com/diptendukar/security-advisories/blob/main/CVE-2026-106971.md

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