Detections
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SCA: security update for github.com/nats-io/nats-server/v2 (GHSA-9983-vrx2-fg9c)

medium Tenable Self-Hosted Container Security Plugin ID 439159

Description

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

 - NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to
 versions 2.11.15 and 2.12.6, users with JetStream admin API access to restore one stream could restore to
 other stream names, impacting data which should have been protected against them. Versions 2.11.15 and
 2.12.6 contain a fix. As a workaround, if developers have configured users to have limited JetStream
 restore permissions, temporarily remove those permissions. (CVE-2026-33222)

Solution

Update the github.com/nats-io/nats-server/v2 library and its related packages to version 2.11.15 or later.

See Also

https://github.com/advisories/GHSA-9983-vrx2-fg9c

Plugin Details

Severity: Medium

ID: 439159

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 3/25/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-33222

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 3/24/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-33222

cwe: CWE-285