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THREAT OPS › Threat News › [NVD] CVE-2026-33218 (HIGH 7.5) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15 an

[NVD] CVE-2026-33218 (HIGH 7.5) — NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15 an

lownvdPublished 2026-03-25

CVE-2026-33218 CVSS: 7.5 HIGH Published: 2026-03-25T20:16:32.623

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, a client which can connect to the leafnode port can crash the nats-server with a certain malformed message pre-authentication. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, disable leafn

Indicators of compromise

CVE-2026-33218cve
nats.iodomain

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-33218