Improper Authorization Affecting nats-server package, versions <2.12.7-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.46% (39th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-NATSSERVER-17973256
  • published15 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-58252  (opens in a new tab)
CWE-285  (opens in a new tab)

How to fix?

Upgrade Minimos:latest nats-server to version 2.12.7-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nats-server package and not the nats-server package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset of it, and queue subscriptions could also affect delivery to legitimate queue consumers. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

CVSS Base Scores

version 3.1