CVE-2026-106972

high

Description

Uncontrolled recursion in MessagePack\BufferUnpacker::unpack() in rybakit/msgpack versions prior to 0.11.0 allows attackers to cause a denial of service through memory exhaustion when an application decodes deeply nested, attacker-controlled MessagePack input.

References

https://github.com/rybakit/msgpack.php/releases/tag/v0.11.0

https://github.com/rybakit/msgpack.php

https://github.com/diptendukar/security-advisories/blob/main/CVE-2026-106972.md

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-112133

Details

Source: Mitre, NVD

Published: 2026-10-28

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00339