How many CVEs have patched mqttParseConnect?

2 published CVEs changed mqttParseConnect in nats-io/nats-server, in 4 distinct patches totalling 3 changed lines, between 2026 and 2026.

What is the latest CVE that changed mqttParseConnect?

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 3742 of server/mqtt.go.

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

nats-io/nats-server has 21 CVEs with a located fix in total; 2 of them changed mqttParseConnect.

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.

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nats-io/nats-server

Function

mqttParseConnect

Name: mqttParseConnect 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

2

CVEs

That changed this function

4

Distinct patches

Backports counted once

3

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

mqttParseConnect in nats-io/nats-server was changed by 2 published CVE fixes in 2026, in 4 distinct patches that added or removed 3 lines in total.

nats-io/nats-server has 21 CVEs with a located fix in total, so 10% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed mqttParseConnect, 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 · line 3742 · +1 −1
High · CVSS 7.1
EPSS 0.4%2026-07-08
NATS has MQTT plaintext password disclosure
CVE-2026-33216 · line 3791 · +0 −1
High · CVSS 8.6
EPSS 0.6%2026-03-25

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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 processMsgResults2 CVEs · server/client.go processClientOrLeafAuthentication2 CVEs · server/auth.go checkActivation2 CVEs · server/accounts.go mqttParsePub1 CVEs · server/mqtt.go mqttToNATSSubjectConversion1 CVEs · server/mqtt.go

All patched functions in nats-io/nats-server

Frequently asked questions

Common questions about CVE fixes to mqttParseConnect.

How many CVEs have patched mqttParseConnect?: 2 published CVEs changed mqttParseConnect in nats-io/nats-server, in 4 distinct patches totalling 3 changed lines, between 2026 and 2026.
What is the latest CVE that changed mqttParseConnect?: 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 3742 of server/mqtt.go.
How does mqttParseConnect compare to the rest of nats-io/nats-server?: nats-io/nats-server has 21 CVEs with a located fix in total; 2 of them changed mqttParseConnect.
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.

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