Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-58252

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 37.2%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-58252


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