Detections
Analytics

SCA: security update for Nerdbank.MessagePack (GHSA-2cwq-pwfr-wcw3)

high Tenable Self-Hosted Container Security Plugin ID 441381

Description

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

 - Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62,
 Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A
 malicious MessagePack payload can declare an oversized timestamp extension length, causing the reader to
 allocate an attacker-controlled number of bytes on the stack. This can trigger a StackOverflowException,
 which is not catchable by user code and terminates the process. This vulnerability is fixed in 1.1.62.
 (CVE-2026-44375)

Solution

Update the Nerdbank.MessagePack library and its related packages to version 1.1.62 or later.

See Also

https://github.com/advisories/GHSA-2cwq-pwfr-wcw3

Plugin Details

Severity: High

ID: 441381

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/7/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.67

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-2026-44375

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: 5/6/2026

Vulnerability Publication Date: 5/6/2026

Reference Information

CVE: CVE-2026-44375

cwe: CWE-789