Detections
Analytics

SCA: security update for msgpack5 (GHSA-5x5g-h9x8-2fh9)

high Tenable Cloud Security Plugin ID 473900

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - msgpack5 is a msgpack v5 implementation for node.js and the browser. Prior to 6.1.0, the streaming decoder
 recursively invokes itself for each complete MessagePack value remaining in a chunk. A remote peer can
 send one chunk containing many small valid values, causing recursion proportional to the value count,
 exhausting the JavaScript call stack, and interrupting the process or stream. This issue is fixed in
 version 6.1.0. (CVE-2026-107300)

Solution

Update the msgpack5 library and its related packages to version 6.1.0 or later.

See Also

https://github.com/advisories/GHSA-5x5g-h9x8-2fh9

Plugin Details

Severity: High

ID: 473900

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-107300

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 10/8/2026

Reference Information

CVE: CVE-2026-107300

cwe: CWE-674