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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-29785)

An update of the telegraf package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-29785)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
460331	Echo: github.com/nats-io/nats-server/v2: security update to 2.11.14	Tenable Cloud Security	Echo Local Security Checks	Local	high
460331	Echo: github.com/nats-io/nats-server/v2: security update to 2.11.14	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
332435	Photon OS 5.0: Telegraf PHSA-2026-5.0-91-0841	Nessus	PhotonOS Local Security Checks	Local	high
312343	Photon OS 5.0: Telegraf PHSA-2026-5.0-0841	Nessus	PhotonOS Local Security Checks	Local	high
303850	Linux Distros Unpatched Vulnerability : CVE-2026-29785	Nessus	Misc.	Local	high
439169	SCA: security update for github.com/nats-io/nats-server/v2 (GHSA-52jh-2xxh-pwh6)	Tenable Cloud Security	SCA Checks	Local	high
439169	SCA: security update for github.com/nats-io/nats-server/v2 (GHSA-52jh-2xxh-pwh6)	Tenable Self-Hosted Container Security	SCA Checks	Local	high

Detections

Analytics

CVE-2026-29785

high

Tenable Plugins

high

high

high

high

high

high

high