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CVE Watch9 jul 2026

CVE-2026-58211

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 coul

CVSS

5.4

Medio

EPSS

0.3%

p21

KEV

—

Exploit Today

6

0-100

Publicado: 8 jul 2026 · Última mod.: 9 jul 2026 · CWE-863

EPSS · 30d
0.2%EPSS · 30 días0.3%
2026-08-102026-09-06
Descripción técnica

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 could be registered as the configured no_auth_user through a parser path used when the first client operation was not CONNECT, bypassing user-level connection restrictions such as allowed_connection_types or proxy_required that normal authentication would apply. This issue is fixed in versions 2.14.3 and 2.12.12.

Referencias oficiales
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