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🍒 Bump github.com/nats-io/nats-server/v2 from 2.12.3 to 2.12.6 (#42338)#42583

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lucasmrod merged 1 commit intorc-minor-fleet-v4.83.0from
bump-nats-dependency-to-fix-possible-CVEs
Mar 27, 2026
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🍒 Bump github.com/nats-io/nats-server/v2 from 2.12.3 to 2.12.6 (#42338)#42583
lucasmrod merged 1 commit intorc-minor-fleet-v4.83.0from
bump-nats-dependency-to-fix-possible-CVEs

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🍒 #42338

Bumps
[github.com/nats-io/nats-server/v2](https://github.com/nats-io/nats-server)
from 2.12.3 to 2.12.6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/nats-io/nats-server/releases">github.com/nats-io/nats-server/v2's
releases</a>.</em></p>
<blockquote>
<h2>Release v2.12.6</h2>
<h2>Changelog</h2>
<p>Refer to the <a
href="https://docs.nats.io/release-notes/whats_new/whats_new_212">2.12
Upgrade Guide</a> for backwards compatibility notes with 2.11.x.</p>
<h3>Go Version</h3>
<ul>
<li>1.25.8</li>
</ul>
<h3>Dependencies</h3>
<ul>
<li>golang.org/x/crypto v0.49.0 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7953">#7953</a>)</li>
<li>github.com/nats-io/jwt/v2 v2.8.1 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7960">#7960</a>)</li>
<li>golang.org/x/sys v0.42.0 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7923">#7923</a>)</li>
<li>golang.org/x/time v0.15.0 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7923">#7923</a>)</li>
</ul>
<h3>CVEs</h3>
<ul>
<li>Fixes CVE-2026-33216, CVE-2026-33217, CVE-2026-33215 (affecting
systems using MQTT)</li>
<li>Fixes CVE-2026-33246 (affects systems using leafnodes and service
imports)</li>
<li>Fixes CVE-2026-33218 (affects systems using leafnodes)</li>
<li>Fixes CVE-2026-33219 (affects systems using WebSockets)</li>
<li>Fixes CVE-2026-33223, CVE-2026-33222 (affects systems using
JetStream)</li>
<li>Fixes CVE-2026-33248 (affects systems using mutual TLS)</li>
<li>Fixes CVE-2026-33247 (affects systems providing credentials on the
command line)</li>
<li>Fixes CVE-2026-33249 (affects systems where client publish
permissions should be restricted)</li>
</ul>
<h3>Improved</h3>
<p>General</p>
<ul>
<li>Non-WebSocket leafnode connections can now be proxied using HTTP
CONNECT (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7781">#7781</a>)</li>
<li>The <code>$SYS.REQ.USER.INFO</code> response now includes the
friendly nametag of the account and/or user if known (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7973">#7973</a>)</li>
</ul>
<p>JetStream</p>
<ul>
<li>The stream peer-remove command now accepts a peer ID as well as a
server name (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7952">#7952</a>)</li>
</ul>
<p>MQTT</p>
<ul>
<li>Protocol compliance has been improved, including more error handling
on invalid or malformed MQTT packets (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7933">#7933</a>)</li>
</ul>
<h3>Fixed</h3>
<p>General</p>
<ul>
<li>Client connections are no longer registered after an auth callout
timeout (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7932">#7932</a>)</li>
<li>Improved handling of duplicate headers</li>
<li>A correctness bug when validating relative distinguished names has
been fixed</li>
<li>Secrets are now redacted correctly in trace logging (<a
href="https://redirect.github.com/nats-io/nats-server/issues/7942">#7942</a>)</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nats-io/nats-server/commit/0e0639058e0d2d8fce0cc34941f9897da152ab32"><code>0e06390</code></a>
Release v2.12.6</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/f593d279dadfbe8228c532ef21216a2b4b84cf4b"><code>f593d27</code></a>
Cherry-picks for 2.12.6 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/61">#61</a>)</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/9f904de022cb441444dc14fc5b0251b140fa1dae"><code>9f904de</code></a>
[FIXED] Incomplete route pool on premature pong</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/b5101921e22a149ea8e23e725d04bf0a85893a48"><code>b510192</code></a>
[FIXED] Avoid stalling read loop on leafnode
ErrMinimumVersionRequired</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/53941c24a17589c51aff5235991e77357fec2a0c"><code>53941c2</code></a>
Report the account and user name in USER.INFO request</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/1ab002ab2b6b8057ca2897e60cf7a8b3194d3eed"><code>1ab002a</code></a>
[IMPROVED] Support HTTP proxy connection from leaf nodes also for
TCP</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/8b6408239fedc487d20fb73626f77689c70c5766"><code>8b64082</code></a>
Release v2.12.6-RC.3</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/e6ab7e9541583932608965ff3d815e323b152e42"><code>e6ab7e9</code></a>
Cherry-picks for 2.12.6-RC.3 (<a
href="https://redirect.github.com/nats-io/nats-server/issues/59">#59</a>)</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/9f4d96076caa4b4af2911b6391c04e35e76ea1b6"><code>9f4d960</code></a>
Make the deduplication window actually work for deduplication for
sourcing</li>
<li><a
href="https://github.com/nats-io/nats-server/commit/304e18402b566a211c9721c9f39eebba65153574"><code>304e184</code></a>
Remove FIXME about auth callout nonce</li>
<li>Additional commits viewable in <a
href="https://github.com/nats-io/nats-server/compare/v2.12.3...v2.12.6">compare
view</a></li>
</ul>
</details>
<br />


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</details>

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@lucasmrod lucasmrod requested a review from a team as a code owner March 27, 2026 19:57
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codecov Bot commented Mar 27, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (rc-minor-fleet-v4.83.0@1343a4d). Learn more about missing BASE report.

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##             rc-minor-fleet-v4.83.0   #42583   +/-   ##
=========================================================
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@lucasmrod lucasmrod assigned juan-fdz-hawa and unassigned nulmete Mar 27, 2026
@lucasmrod lucasmrod merged commit f99f7f5 into rc-minor-fleet-v4.83.0 Mar 27, 2026
41 checks passed
@lucasmrod lucasmrod deleted the bump-nats-dependency-to-fix-possible-CVEs branch March 27, 2026 20:18
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3 participants