How many CVEs have patched processClientOrLeafAuthentication?

2 published CVEs changed processClientOrLeafAuthentication in nats-io/nats-server, in 2 distinct patches totalling 21 changed lines, between 2020 and 2026.

What is the latest CVE that changed processClientOrLeafAuthentication?

CVE-2026-33216 (NATS has MQTT plaintext password disclosure), published 2026-03-25, changed lines 607 to 1092 of server/auth.go.

How does processClientOrLeafAuthentication 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 processClientOrLeafAuthentication.

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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Patched Functions
Nats Io
Nats Server
ProcessClientOrLeafAuthentication

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Weaknesses (CWE)The MITRE CWE weakness catalog
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Patched Functions
Nats Io
Nats Server
ProcessClientOrLeafAuthentication

processClientOrLeafAuthentication in nats-io/nats-server: Patched by 2 CVEs

nats-io/nats-server

Function

processClientOrLeafAuthentication

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

server/auth.go

Last patched March 25, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2020–2026

Years

By CVE publication date

Overview

processClientOrLeafAuthentication in nats-io/nats-server was changed by 2 published CVE fixes between 2020 and 2026, in 2 distinct patches that added or removed 21 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 processClientOrLeafAuthentication, newest first, with the lines each fix touched.

NATS has MQTT plaintext password disclosure
CVE-2026-33216 · lines 607–1092 · +16 −3 in 3 hunks
High · CVSS 8.6
EPSS 0.6%2026-03-25
Incorrect handling of credential expiry by /nats-io/nats-server
CVE-2020-26892 · line 477 · +1 −1
Critical · CVSS 9.8
EPSS 2.3%2020-11-06

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1checkClientTLSCertSubjectserver/auth.go1 CVEs · 1 patches2026

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 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 processClientOrLeafAuthentication.

How many CVEs have patched processClientOrLeafAuthentication?: 2 published CVEs changed processClientOrLeafAuthentication in nats-io/nats-server, in 2 distinct patches totalling 21 changed lines, between 2020 and 2026.
What is the latest CVE that changed processClientOrLeafAuthentication?: CVE-2026-33216 (NATS has MQTT plaintext password disclosure), published 2026-03-25, changed lines 607 to 1092 of server/auth.go.
How does processClientOrLeafAuthentication 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 processClientOrLeafAuthentication.
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

server/auth.go on GitHub (opens in a new tab)
All patched functions in nats-io/nats-server
Patched functions directory

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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On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References