build(deps): bump fastmcp from 3.2.0 to 3.4.2 in /mcp-server

[dependabot]

Bumps fastmcp from 3.2.0 to 3.4.2.

Release notes

Sourced from fastmcp's releases.

v3.4.2: Heads Up

FastMCP 3.4.2 restores JWT compatibility for providers that include private, non-critical JWS header parameters. Tokens from providers like Clerk can carry header metadata such as cat without being rejected before signature and claim validation, while unsupported critical headers are still rejected.

What's Changed

Fixes 🐞

• Allow private JWT headers by @​jlowin in PrefectHQ/fastmcp#4290

Docs 📚

• Docs: add v3.4.1 changelog entries by @​jlowin in PrefectHQ/fastmcp#4289

Full Changelog: PrefectHQ/fastmcp@v3.4.1...v3.4.2

v3.4.1: Floor It

FastMCP 3.4.1 floors Starlette at >=1.0.1 so installs can no longer resolve to a version affected by CVE-2026-48710 — previously the dependency was only constrained transitively through mcp, which allowed vulnerable versions. It also makes OAuthProxy log refresh-token cache misses instead of failing silently.

What's Changed

Enhancements ✨

• Log refresh-token misses in OAuthProxy instead of failing silently by @​jlowin in PrefectHQ/fastmcp#4276

Security 🔒

• Add explicit starlette>=1.0.1 floor (CVE-2026-48710) by @​jlowin in PrefectHQ/fastmcp#4286

Docs 📚

• Document --notes-start-tag in release instructions by @​jlowin in PrefectHQ/fastmcp#4275

Full Changelog: PrefectHQ/fastmcp@v3.4.0...v3.4.1

v3.4.0: Remote Control

FastMCP 3.4 is about reaching servers that live somewhere else. The headline is fastmcp-remote, a standalone bridge that connects stdio-only MCP hosts to servers hosted over HTTP. Around it, this release hardens the proxy layer those remote connections depend on — making bridges fail loudly instead of silently, and keeping authenticated sessions alive across the long idle periods that remote clients are prone to.

fastmcp-remote

Some MCP hosts still insist on launching a local stdio command, even when the server you want is already running over HTTP. FastMCP could already proxy a remote URL through fastmcp run, but that pulls in the full server-runner surface. fastmcp-remote is the small, single-purpose version: one URL in, one local stdio proxy out.

{
  "mcpServers": {
    "linear": {
      "command": "uvx",
      "args": ["fastmcp-remote", "https://mcp.linear.app/mcp"]
    }
  }
}

OAuth is enabled automatically for HTTPS servers, with support for explicit bearer tokens and custom headers when you need them. The implementation stays on FastMCP primitives — Client, OAuth, create_proxy, and stdio — and credits the original npm mcp-remote project for the command shape.

... (truncated)

Commits

• 3b8538e Allow private JWT headers (#4290)
• 0445c31 chore: Update SDK documentation (#4223)
• 9261793 Docs: add v3.4.1 changelog entries (#4289)
• e1b52d0 Add explicit starlette>=1.0.1 floor (CVE-2026-48710) (#4286)
• e58f386 Log refresh-token misses in OAuthProxy instead of failing silently (#4276)
• 3f09c68 Document --notes-start-tag requirement in release instructions (#4275)
• e124bde Fix MDX syntax error in changelog (#4270)
• dae11bb Backfill changelog and updates through v3.4.0 (#4269)
• 0f4f78c Fix resource templates with query params on proxied servers (#4251)
• 1a06130 Fix GitHub MCP resource integration test (#4253)
• Additional commits viewable in compare view

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[github-actions]

Code Coverage Report

Overall Project	67.39%	🟢
Files changed	No Java source files changed	-

Module	Coverage
aliyun	1.72%	🔴
api	46.82%	🟢
authorization-common	85.96%	🟢
aws	26.5%	🔴
azure	2.47%	🔴
catalog-common	10.4%	🔴
catalog-fileset	80.23%	🟢
catalog-glue	66.91%	🟢
catalog-hive	79.42%	🟢
catalog-jdbc-clickhouse	80.2%	🟢
catalog-jdbc-common	44.22%	🟢
catalog-jdbc-doris	80.28%	🟢
catalog-jdbc-hologres	54.03%	🟢
catalog-jdbc-mysql	79.23%	🟢
catalog-jdbc-oceanbase	80.91%	🟢
catalog-jdbc-postgresql	82.29%	🟢
catalog-jdbc-starrocks	78.51%	🟢
catalog-kafka	77.01%	🟢
catalog-lakehouse-generic	58.53%	🟢
catalog-lakehouse-hudi	79.1%	🟢
catalog-lakehouse-iceberg	85.86%	🟢
catalog-lakehouse-paimon	84.25%	🟢
catalog-model	77.72%	🟢
cli	44.51%	🟢
client-java	78.01%	🟢
common	50.17%	🟢
core	82.59%	🟢
filesystem-hadoop3	77.3%	🟢
flink	0.0%	🔴
flink-common	47.12%	🟢
flink-runtime	0.0%	🔴
gcp	14.12%	🔴
hadoop-auth	66.67%	🟢
hadoop-common	12.7%	🔴
hive-metastore-common	53.29%	🟢
iceberg-common	58.3%	🟢
iceberg-rest-server	74.01%	🟢
idp-basic	85.71%	🟢
integration-test-common	0.0%	🔴
jobs	66.17%	🟢
lance-common	20.81%	🔴
lance-rest-server	64.84%	🟢
lineage	53.02%	🟢
optimizer	83.24%	🟢
optimizer-api	21.95%	🔴
server	85.96%	🟢
server-common	74.62%	🟢
spark	28.57%	🔴
spark-common	45.58%	🟢
trino-connector	40.29%	🟢