Detections
Analytics

SCA: security update for msgpack5 (GHSA-8hq7-ggx2-cc6m)

medium Tenable Self-Hosted Container Security Plugin ID 473887

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, constructing msgpack5
 with an empty or partial options object disables the default protoAction: 'error' protection. A decoded
 map containing a __proto__ key can then replace the decoded object's prototype, potentially changing
 inherited properties or downstream behavior, although Object.prototype is not modified globally. This
 issue is fixed in version 6.1.0. (CVE-2026-107301)

Solution

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

See Also

https://github.com/advisories/GHSA-8hq7-ggx2-cc6m

Plugin Details

Severity: Medium

ID: 473887

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.45

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-107301

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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-2026-107301