How many CVEs have patched mqttValidatePublishTopic?

1 published CVEs changed mqttValidatePublishTopic in nats-io/nats-server, in 3 distinct patches totalling 16 changed lines, between 2026 and 2026.

What is the latest CVE that changed mqttValidatePublishTopic?

CVE-2026-58213 (NATS Server: MQTT SUBSCRIBE Protocol Injection via Leaf Node/Route Forwarding allows arbitrary NATS command injection), published 2026-07-08, changed lines 4161 to 4176 of server/mqtt.go.

How does mqttValidatePublishTopic compare to the rest of nats-io/nats-server?

nats-io/nats-server has 21 CVEs with a located fix in total; 1 of them changed mqttValidatePublishTopic.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

RadicalNotion.AI

Log in Create an account

nats-io/nats-server

Function

mqttValidatePublishTopic

Name: mqttValidatePublishTopic in nats-io/nats-server: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

server/mqtt.go

Last patched July 8, 2026

1

CVEs

That changed this function

3

Distinct patches

Backports counted once

16

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

mqttValidatePublishTopic in nats-io/nats-server was changed by 1 published CVE fixes in 2026, in 3 distinct patches that added or removed 16 lines in total.

nats-io/nats-server has 21 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed mqttValidatePublishTopic, newest first, with the lines each fix touched.

NATS Server: MQTT SUBSCRIBE Protocol Injection via Leaf Node/Route Forwarding allows arbitrary NATS command injection
CVE-2026-58213 · lines 4161–4176 · +16 −0
High · CVSS 7.1
EPSS 0.4%2026-07-08

Get an alert when the next CVE fix lands in nats-io/nats-server, with the patched functions.

Monitor nats-server CVEs

Other functions in these files

Functions in the same file that CVE fixes also changed.

Other hotspots in the repository

Functions in nats-io/nats-server changed by the most CVE fixes.

canSubscribe3 CVEs · server/client.go mqttParseConnect2 CVEs · server/mqtt.go processMsgResults2 CVEs · server/client.go processClientOrLeafAuthentication2 CVEs · server/auth.go checkActivation2 CVEs · server/accounts.go mqttParsePub1 CVEs · server/mqtt.go

All patched functions in nats-io/nats-server

Frequently asked questions

Common questions about CVE fixes to mqttValidatePublishTopic.

How many CVEs have patched mqttValidatePublishTopic?: 1 published CVEs changed mqttValidatePublishTopic in nats-io/nats-server, in 3 distinct patches totalling 16 changed lines, between 2026 and 2026.
What is the latest CVE that changed mqttValidatePublishTopic?: CVE-2026-58213 (NATS Server: MQTT SUBSCRIBE Protocol Injection via Leaf Node/Route Forwarding allows arbitrary NATS command injection), published 2026-07-08, changed lines 4161 to 4176 of server/mqtt.go.
How does mqttValidatePublishTopic compare to the rest of nats-io/nats-server?: nats-io/nats-server has 21 CVEs with a located fix in total; 1 of them changed mqttValidatePublishTopic.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

Track nats-io/nats-server CVEs

Get an alert when a new CVE lands in this repository, with the patched functions and AI-written remediation guidance.

Create an account See pricing