CVE-2026-106971

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-106971
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

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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
Configurations

No configuration.

History

03 Nov 2026, 13:17

Type Values Removed Values Added
CWE CWE-400
CWE-190
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
References () https://github.com/diptendukar/security-advisories/blob/main/CVE-2026-106971.md - () https://github.com/diptendukar/security-advisories/blob/main/CVE-2026-106971.md -

29 Oct 2026, 17:17

Type Values Removed Values Added
Summary (en) 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. (en) 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

28 Oct 2026, 15:24

Type Values Removed Values Added
New CVE
Information

Published : 2026-10-28 15:17

Updated : 2026-11-03 13:17

NVD link : CVE-2026-106971

Mitre link : CVE-2026-106971

CVE.ORG link : CVE-2026-106971

JSON object : View

Products Affected

No product.

CWE
CWE-190

Integer Overflow or Wraparound

CWE-400

Uncontrolled Resource Consumption