Skip to content
fr Sign in
5.3 Medium

CVE-2026-58254 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system

Description

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.8, message trace destination checks were applied to ordinary client connections but not consistently to messages arriving through leafnode connections, allowing a leafnode operator to send trace events to subjects that would not otherwise be permitted and to use trace-only behavior to prevent normal delivery or storage of affected messages. This issue is fixed in versions 2.14.3 and 2.12.8.

Affected products and versions

Product Affected versions Fixed in
nats-server 2.14 2.14.0-RC.1 → < 2.14.3 2.14.3
nats-server 2.12 earliest → < 2.12.8 2.12.8

References

Timeline

  1. Published
  2. Last modified

Other CVEs of nats-server

The 27 CVEs of nats-server →
CVE-2026-58208 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 6.8 Medium CVE-2026-58211 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 5.4 Medium CVE-2026-58207 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 7.7 High CVE-2026-58210 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 7.5 High
Track this CVE