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SCA: security update for github.com/nats-io/nats-server/v2, github.com/nats-io/nkeys (GHSA-mr45-rx8q-wcm9)

high Tenable Cloud Security Plugin ID 417105

Description

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

 - NATS.io is a high performance open source pub-sub distributed communication technology, built for the
 cloud, on-premise, IoT, and edge computing. The cryptographic key handling library, nkeys, recently gained
 support for encryption, not just for signing/authentication. This is used in nats-server 2.10 (Sep 2023)
 and newer for authentication callouts. In nkeys versions 0.4.0 through 0.4.5, corresponding with NATS
 server versions 2.10.0 through 2.10.3, the nkeys library's `xkeys` encryption handling logic mistakenly
 passed an array by value into an internal function, where the function mutated that buffer to populate the
 encryption key to use. As a result, all encryption was actually to an all-zeros key. This affects
 encryption only, not signing. FIXME: FILL IN IMPACT ON NATS-SERVER AUTH CALLOUT SECURITY. nkeys Go library
 0.4.6, corresponding with NATS Server 2.10.4, has a patch for this issue. No known workarounds are
 available. For any application handling auth callouts in Go, if using the nkeys library, update the
 dependency, recompile and deploy that in lockstep. (CVE-2023-46129)

See Also

https://github.com/advisories/GHSA-mr45-rx8q-wcm9

Plugin Details

Severity: High

ID: 417105

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.96

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:C/I:N/A:N

CVSS Score Source: CVE-2023-46129

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:H/I:N/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: 10/31/2023

Vulnerability Publication Date: 10/30/2023

Reference Information

CVE: CVE-2023-46129