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7.7 High

CVE-2026-58207 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 2.12.12, a client able to send account-scoped connection monitoring requests could crash the server by supplying Connz pagination Offset and Limit values that overflowed internal arithmetic before the response window was safely bounded. This issue is fixed in versions 2.14.3 and 2.12.12.

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 → < 2.12.12 2.12.12

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-2026-58210 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 7.5 High CVE-2026-58209 NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system 4.3 Medium
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