6.5
Medium
CVE-2026-58252 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 2.14.0, 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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| nats-server 2.12 | 2.12.0-preview.1 → < 2.12.7 | 2.12.7 |
| nats-server 2.11 | earliest → < 2.11.16 | 2.11.16 |
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