Detections
Analytics

SCA: security update for MessagePack, MessagePack.ImmutableCollection, MessagePack.ReactiveProperty, MessagePack.Unity, MessagePack.UnityShims (GHSA-7q36-4xx7-xcxf)

medium Tenable Cloud Security Plugin ID 422172

Description

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

 - MessagePack for C# and Unity before version 1.9.11 and 2.1.90 has a vulnerability where untrusted data can
 lead to DoS attack due to hash collisions and stack overflow. Review the linked GitHub Security Advisory
 for more information and remediation steps. (CVE-2020-5234)

See Also

https://github.com/advisories/GHSA-7q36-4xx7-xcxf

Plugin Details

Severity: Medium

ID: 422172

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 3/28/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-5234

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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: 1/31/2020

Vulnerability Publication Date: 1/31/2020

Reference Information

CVE: CVE-2020-5234

cwe: CWE-121