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Bump @modelcontextprotocol/sdk from 1.24.3 to 1.26.0 - #8

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@dependabot dependabot Bot commented on behalf of github Feb 4, 2026 •

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Bumps @modelcontextprotocol/sdk from 1.24.3 to 1.26.0.

Release notes

Sourced from @​modelcontextprotocol/sdk's releases.

v1.26.0

Addresses "Sharing server/transport instances can leak cross-client response data" in this GHSA GHSA-345p-7cg4-v4c7

What's Changed

New Contributors

Full Changelog: modelcontextprotocol/typescript-sdk@v1.25.3...v1.26.0

v1.25.3

What's Changed

Full Changelog: modelcontextprotocol/typescript-sdk@v1.25.2...v1.25.3

v1.25.2

What's Changed

New Contributors

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

1.25.1

What's Changed

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

1.25.0

What's Changed

... (truncated)

Commits
  • fe9c07b chore: bump version to 1.26.0 (#1479)
  • 4f01e7e fix: add non-null assertions for optional setupServer fields in stateful test
  • a05be17 Merge commit from fork
  • 50d9fa3 Fix #1430: Client Credentials providers scopes support (backported) (#1442)
  • aa81a66 fix(deps): resolve npm audit vulnerabilities and bump dependencies (v1.x back...
  • 6aba065 chore: bump v1.25.3 for backport fixes (#1412)
  • 6e8f7e1 fix: prevent Hono from overriding global Response object (v1.x) (#1411)
  • 12ae856 [v1.x backport] Use correct schema for client sampling validation when tools ...
  • b392f02 fix: prevent ReDoS in UriTemplate regex patterns (v1.x backport) (#1365)
  • a0c9b13 fix: README badges links destinations (#907)
  • Additional commits viewable in compare view

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@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Feb 4, 2026
Bumps [@modelcontextprotocol/sdk](https://github.com/modelcontextprotocol/typescript-sdk) from 1.24.3 to 1.26.0.
- [Release notes](https://github.com/modelcontextprotocol/typescript-sdk/releases)
- [Commits](modelcontextprotocol/typescript-sdk@1.24.3...v1.26.0)

---
updated-dependencies:
- dependency-name: "@modelcontextprotocol/sdk"
  dependency-version: 1.26.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot
dependabot Bot force-pushed the dependabot/npm_and_yarn/modelcontextprotocol/sdk-1.26.0 branch from 0334ddf to d4c62c1 Compare February 23, 2026 08:08
@domdomegg
domdomegg enabled auto-merge (squash) July 9, 2026 23:17
@domdomegg

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Closing: SDK 1.26.0 has an upstream type regression that breaks the build here.

WebStandardStreamableHTTPServerTransportOptions.sessionIdGenerator changed from
(() => string) | undefined (1.24.3) to ?: () => string (1.26.0+), which rejects an
explicit sessionIdGenerator: undefined under exactOptionalPropertyTypes: true:

error TS2379: Argument of type '{ sessionIdGenerator: undefined; enableJsonResponse: true; }'
is not assignable to parameter of type 'WebStandardStreamableHTTPServerTransportOptions'

Verified the regression is present in 1.26.0, 1.27.0, 1.27.1, 1.28.0 and 1.29.0, so there is
no newer version to bump to. The upstream fix (modelcontextprotocol/typescript-sdk#1855) was
merged 2026-05-04 but has not been released — latest is still 1.29.0 (2026-03-30).

Staying on 1.24.3 until a release containing that fix lands.

@domdomegg domdomegg closed this Jul 27, 2026
auto-merge was automatically disabled July 27, 2026 14:19

Pull request was closed

@dependabot @github

dependabot Bot commented on behalf of github Jul 27, 2026

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OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.

@dependabot
dependabot Bot deleted the dependabot/npm_and_yarn/modelcontextprotocol/sdk-1.26.0 branch July 27, 2026 14:19
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