CVE-2026-58213High· 7.1▾ TwilightNATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as N…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 13.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
0.4% → 0.4%
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.
nats-server < 2.12.9nats-server >= 2.14.0, < 2.14.1Upgrade past the affected range:
nats-server 2.14.1Connected by shared product, vendor, weakness, or advisory.
CVE-2026-33247High· 7.4NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system
CVE-2026-33219Medium· 5.3NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system
CVE-2026-33218High· 7.5NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system
CVE-2026-33217High· 7.1NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system
CVE-2026-33216High· 8.6NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system
CVE-2026-29785High· 7.5NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system