OCTOBER 13, 2026
Live Feed
Back to database
Case File

CVE-2026-107296

LOW · CVSS 3.7 EPSS 0.28% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-10-08 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

The msgpack5 library for Node.js and browsers contains a vulnerability that affects the decoding of negative signed 64-bit integers, leading to unintended modifications of the input buffer. This can result in silently corrupted data, particularly for applications that rely on the integrity of encoded input for checks or logging. Developers using versions prior to 6.1.0 should prioritize upgrading to mitigate potential data integrity issues.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-107296
Severity
LOW
CVSS
3.7
EPSS
0.28%

Original NVD Description

msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, decoding a negative signed 64-bit integer modifies the corresponding bytes in the caller-provided input buffer while computing the value. Applications that retain or reuse encoded input for integrity checks, logging, or later processing can observe silently corrupted data, while positive integers and other MessagePack value types are unaffected. This issue is fixed in version 6.1.0.