cvedb.io
CVE-2026-29785
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-03-25T20:16:30.373 · Last modified 2026-06-30T03:18:09.203

Summary

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.14 and 2.12.5, if the nats-server has the "leafnode" configuration enabled (not default), then anyone who can connect can crash the nats-server by triggering a panic. This happens pre-authentication and requires that compression be enabled (which it is, by default, when leafnodes are used). Versions 2.11.14 and 2.12.5 contain a fix. As a workaround, disable compression on the leafnode port.

Affected products

linuxfoundation — nats-server

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.