Update npm package @modelcontextprotocol/sdk to v1.25.2 [SECURITY]

[hash-worker]

This PR contains the following updates:

Package	Change	Age	Confidence
@modelcontextprotocol/sdk (source)	1.24.0 -> 1.25.2

---

Warning

Some dependencies could not be looked up. Check the Dependency Dashboard for more information.

GitHub Vulnerability Alerts

CVE-2026-0621

Impact

A ReDoS vulnerability in the UriTemplate class allows attackers to cause denial of service. The partToRegExp() function generates a regex pattern with nested quantifiers (([^/]+(?:,[^/]+)*)) for exploded template variables (e.g., {/id*}, {?tags*}), causing catastrophic backtracking on malicious input.

Who is affected: MCP servers that register resource templates with exploded array patterns and accept requests from untrusted clients.

Attack result: An attacker sends a crafted URI via resources/read request, causing 100% CPU utilization, server hang/crash, and denial of service for all clients.

Affected Versions

All versions of @modelcontextprotocol/sdk prior to the patched release.

Patches

v1.25.2 contains b392f02ffcf37c088dbd114fedf25026ec3913d3 the fix modifies the regex pattern to prevent backtracking.

Workarounds

• Avoid using exploded patterns ({/id*}, {?tags*}) in resource templates
• Implement request timeouts and rate limiting
• Validate URIs before processing to reject suspicious patterns

---

Release Notes

modelcontextprotocol/typescript-sdk (@​modelcontextprotocol/sdk)

v1.25.2

Compare Source

What's Changed

• ci: trigger workflow on v1.x branch by @​felixweinberger in #​1319
• fix: README badges links destinations by @​antonpk1 in #​907
• fix: prevent ReDoS in UriTemplate regex patterns (v1.x backport) by @​pcarleton in #​1365

New Contributors

• @​antonpk1 made their first contribution in #​907

Full Changelog: modelcontextprotocol/typescript-sdk@1.25.1...v1.25.2

v1.25.1

Compare Source

What's Changed

• spec types - backwards compatibility changes by @​KKonstantinov in #​1306
• chore: bump version for patch fix by @​felixweinberger in #​1307

Full Changelog: modelcontextprotocol/typescript-sdk@1.25.0...1.25.1

v1.25.0

Compare Source

What's Changed

• list changed handlers on client constructor by @​mattzcarey in #​1206
• Role - moved from inline to reusable type by @​KKonstantinov in #​1221
• fix: use versioned npm tag for non-main branch releases by @​pcarleton in #​1236
• No automatic completion support unless needed - Revisited yet again by @​cliffhall in #​1237
• fix: Support updating output schema by @​vincent0426 in #​1048
• Remove type dependency on @​cfworker/json-schema by @​LucaButBoring in #​1229
• Relocate tests under /test by @​KKonstantinov in #​1220
• Fix tsconfig: remove tests by @​KKonstantinov in #​1240
• tsconfig - tests and build fix by @​KKonstantinov in #​1243
• fix a typo in examples README by @​DaleSeo in #​1246
• Protocol date validation by @​mattzcarey in #​1247
• Flaky test fix on Types.test.ts by @​KKonstantinov in #​1244
• SPEC COMPLIANCE: Remove loose/passthrough types not allowed/defined by MCP spec + Task types by @​KKonstantinov in #​1242
• Follow-up fixes for PR #​1242 by @​felixweinberger in #​1274
• Update server examples and docs by @​DaleSeo in #​1285
• Update TypeScript config to ES2020 to fix AJV imports by @​mattzcarey in #​1297
• Fix Zod v4 schema description extraction by @​felixweinberger in #​1296
• Add optional description field to Implementation schema by @​calclavia in #​1295
• Add theme property to Icon schema by @​DaleSeo in #​1290
• feat: fetch transport by @​mattzcarey in #​1209
• chore: bump version for release by @​felixweinberger in #​1301

New Contributors

• @​vincent0426 made their first contribution in #​1048

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.3...1.25.0

v1.24.3

Compare Source

What's Changed

• chore: fix dev dependency security vulnerabilities by @​felixweinberger in #​1227
• chore(deps): bump express from 5.0.1 to 5.2.1 in the npm_and_yarn group across 1 directory by @​dependabot[bot] in #​1228
• fix: release HTTP connections after POST responses by @​mattzcarey in #​1214
• fix: skip priming events and closeSSEStream for old protocol versions by @​felixweinberger in #​1233
• chore: bump version for patch release by @​felixweinberger in #​1235

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.2...1.24.3

v1.24.2

Compare Source

What's Changed

• feat: add optional resource annotations by @​vhorvath2010 in #​954
• chore: refresh CLAUDE.md by @​LucaButBoring in #​1217
• refactor: make Server class framework-agnostic by moving express to separate module by @​cytle in #​1223
• chore: bump version to 1.24.2 by @​pcarleton in #​1224

New Contributors

• @​vhorvath2010 made their first contribution in #​954
• @​cytle made their first contribution in #​1223

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.1...1.24.2

v1.24.1

Compare Source

What's Changed

• fix(streamableHttp): fix infinite retries when maxRetries is set to 0 by @​mrorigo in #​1216
• chore: update protocol version to 2025-11-25 by @​dsp-ant in #​1218
• chore: bump version for release by @​felixweinberger in #​1219

New Contributors

• @​mrorigo made their first contribution in #​1216

Full Changelog: modelcontextprotocol/typescript-sdk@1.24.0...1.24.1

---

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot.

[cursor]

PR Summary

Dependency upgrade (security)

• Update @modelcontextprotocol/sdk from 1.24.0 to 1.25.2 in apps/mcp/linear/package.json and apps/mcp/notion/package.json
• Refresh yarn.lock to resolve to 1.25.2, adding transitive deps (@hono/node-server, json-schema-typed) and removing older SDK entries
• Addresses ReDoS in UriTemplate regex; no source code changes beyond dependency/version updates

^{Written by Cursor Bugbot for commit 418f5c5. This will update automatically on new commits. Configure here.}

[augmentcode]

🤖 Augment PR Summary

Summary: Updates the MCP TypeScript SDK dependency to pick up the upstream ReDoS fix for CVE-2026-0621.

Changes:

• Bumped @modelcontextprotocol/sdk from 1.24.0 to 1.25.2 in the Linear and Notion MCP apps.
• Regenerated yarn.lock to resolve the new SDK version across the workspace.
• Introduces new transitive dependencies pulled in by the SDK (e.g. @hono/node-server, json-schema-typed).

Technical Notes: v1.25.2 includes an upstream patch to UriTemplate regex generation to prevent catastrophic backtracking (ReDoS) on malicious URIs.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. No suggestions at this time.

Comment augment review to trigger a new review at any time.