Detections
Analytics

SCA: security update for github.com/nats-io/jwt (GHSA-h2fg-54x9-5qhq)

high Tenable Cloud Security Plugin ID 431949

Description

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

 - The JWT library in NATS nats-server before 2.1.9 allows a denial of service (a nil dereference in Go
 code). (CVE-2020-26521)

See Also

https://github.com/advisories/GHSA-h2fg-54x9-5qhq

Plugin Details

Severity: High

ID: 431949

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 8/7/2025

Updated: 1/27/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-26521

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: 2/11/2022

Vulnerability Publication Date: 11/6/2020

Reference Information

CVE: CVE-2020-26521

cwe: CWE-476