chore(deps): bump esbuild and wrangler in /worker-relay

[dependabot]

Bumps esbuild to 0.28.1 and updates ancestor dependency wrangler. These dependencies need to be updated together.

Updates esbuild from 0.27.3 to 0.28.1

Release notes

Sourced from esbuild's releases.

v0.28.1

• Disallow \ in local development server HTTP requests (GHSA-g7r4-m6w7-qqqr)

  This release fixes a security issue where HTTP requests to esbuild's local development server could traverse outside of the serve directory on Windows using a \ backslash character. It happened due to the use of Go's path.Clean() function, which only handles Unix-style / characters. HTTP requests with paths containing \ are no longer allowed.

  Thanks to @​dellalibera for reporting this issue.

• Add integrity checks to the Deno API (GHSA-gv7w-rqvm-qjhr)

  The previous release of esbuild added integrity checks to esbuild's npm install script. This release also adds integrity checks to esbuild's Deno install script. Now esbuild's Deno API will also fail with an error if the downloaded esbuild binary contains something other than the expected content.

  Note that esbuild's Deno API installs from registry.npmjs.org by default, but allows the NPM_CONFIG_REGISTRY environment variable to override this with a custom package registry. This change means that the esbuild executable served by NPM_CONFIG_REGISTRY must now match the expected content.

  Thanks to @​sondt99 for reporting this issue.

• Avoid inlining using and await using declarations (#4482)

  Previously esbuild's minifier sometimes incorrectly inlined using and await using declarations into subsequent uses of that declaration, which then fails to dispose of the resource correctly. This bug happened because inlining was done for let and const declarations by avoiding doing it for var declarations, which no longer worked when more declaration types were added. Here's an example:

  // Original code
  {
    using x = new Resource()
    x.activate()
  }
  // Old output (with --minify)
  new Resource().activate();
  // New output (with --minify)
  {using e=new Resource;e.activate()}

• Fix module evaluation when an error is thrown (#4461, #4467)

  If an error is thrown during module evaluation, esbuild previously didn't preserve the state of the module for subsequent module references. This was observable if import() or require() is used to import a module multiple times. The thrown error is supposed to be thrown by every call to import() or require(), not just the first. With this release, esbuild will now throw the same error every time you call import() or require() on a module that throws during its evaluation.

• Fix some edge cases around the new operator (#4477)

  Previously esbuild incorrectly printed certain edge cases involving complex expressions inside the target of a new expression (specifically an optional chain and/or a tagged template literal). The generated code for the new target was not correctly wrapped with parentheses, and either contained a syntax error or had different semantics. These edge cases have been fixed so that they now correctly wrap the new target in parentheses. Here is an example of some affected code:

  // Original code
  new (foo()`bar`)()
  new (foo()?.bar)()
  // Old output
  new foo()bar();
  new (foo())?.bar();

... (truncated)

Changelog

Sourced from esbuild's changelog.

0.28.1

• Disallow \ in local development server HTTP requests (GHSA-g7r4-m6w7-qqqr)

  This release fixes a security issue where HTTP requests to esbuild's local development server could traverse outside of the serve directory on Windows using a \ backslash character. It happened due to the use of Go's path.Clean() function, which only handles Unix-style / characters. HTTP requests with paths containing \ are no longer allowed.

  Thanks to @​dellalibera for reporting this issue.

• Add integrity checks to the Deno API (GHSA-gv7w-rqvm-qjhr)

  The previous release of esbuild added integrity checks to esbuild's npm install script. This release also adds integrity checks to esbuild's Deno install script. Now esbuild's Deno API will also fail with an error if the downloaded esbuild binary contains something other than the expected content.

  Note that esbuild's Deno API installs from registry.npmjs.org by default, but allows the NPM_CONFIG_REGISTRY environment variable to override this with a custom package registry. This change means that the esbuild executable served by NPM_CONFIG_REGISTRY must now match the expected content.

  Thanks to @​sondt99 for reporting this issue.

• Avoid inlining using and await using declarations (#4482)

  Previously esbuild's minifier sometimes incorrectly inlined using and await using declarations into subsequent uses of that declaration, which then fails to dispose of the resource correctly. This bug happened because inlining was done for let and const declarations by avoiding doing it for var declarations, which no longer worked when more declaration types were added. Here's an example:

  // Original code
  {
    using x = new Resource()
    x.activate()
  }
  // Old output (with --minify)
  new Resource().activate();
  // New output (with --minify)
  {using e=new Resource;e.activate()}

• Fix module evaluation when an error is thrown (#4461, #4467)

  If an error is thrown during module evaluation, esbuild previously didn't preserve the state of the module for subsequent module references. This was observable if import() or require() is used to import a module multiple times. The thrown error is supposed to be thrown by every call to import() or require(), not just the first. With this release, esbuild will now throw the same error every time you call import() or require() on a module that throws during its evaluation.

• Fix some edge cases around the new operator (#4477)

  Previously esbuild incorrectly printed certain edge cases involving complex expressions inside the target of a new expression (specifically an optional chain and/or a tagged template literal). The generated code for the new target was not correctly wrapped with parentheses, and either contained a syntax error or had different semantics. These edge cases have been fixed so that they now correctly wrap the new target in parentheses. Here is an example of some affected code:

  // Original code
  new (foo()`bar`)()
  new (foo()?.bar)()
  // Old output
  new foo()bar();
  new (foo())?.bar();

... (truncated)

Commits

• bb9db84 publish 0.28.1 to npm
• 9ff053e security: add integrity checks to the Deno API
• 0a9bf21 enforce non-negative size in gzip parser
• e2a1a71 security: forbid \\ in local dev server requests
• 83a2cbf fix #4482: don't inline using declarations
• 308ad74 fix #4471: renaming of nested var declarations
• f013f5f fix some typos
• aafd6e4 chore: fix some minor issues in comments (#4462)
• 15300c3 follow up: cjs evaluation fixes
• 1bda0c3 fix #4461, fix #4467: esm evaluation fixes
• Additional commits viewable in compare view

Updates wrangler from 4.75.0 to 4.103.0

Release notes

Sourced from wrangler's releases.

wrangler@4.103.0

Minor Changes

• #14295 cfd6205 Thanks @​dario-piotrowicz! - Move unstable_getWorkerNameFromProject from wrangler to @cloudflare/workers-utils

  The unstable_getWorkerNameFromProject export has been removed from the wrangler package. This function is now available as getWorkerNameFromProject (without the unstable_ prefix) from @cloudflare/workers-utils. If you were importing this function from wrangler, update your import to use @cloudflare/workers-utils instead.

• #14295 cfd6205 Thanks @​dario-piotrowicz! - Remove experimental autoconfig exports

  The experimental autoconfig exports (experimental_getDetailsForAutoConfig, experimental_runAutoConfig, experimental_AutoConfigFramework) have been removed. This logic has been moved to the @cloudflare/autoconfig package (without the experimental_ prefixes since the package itself is pre-v1).

Patch Changes

• #14366 c6579d3 Thanks @​jamesopstad! - Resolve relative cf-worker entrypoint imports relative to the importing module

  When loading the experimental cloudflare.config.ts, a relative entrypoint imported with import ... with { type: "cf-worker" } (e.g. ./src/index.ts) is now anchored to the module where the import is written, rather than being passed through verbatim and later resolved against the top-level config file. This fixes incorrect resolution when the import lives in a file other than the entry config — for example a config that re-exports from a nested file.

  Bare specifiers (such as @scope/pkg) and virtual modules (such as virtual:foo) are still left unresolved so that consumers can apply their own resolution.

• #14316 444b75e Thanks @​matingathani! - Prevent wrangler dev crash when source-mapping a truncated error chunk

  When a worker logs many errors in quick succession, the stderr chunks received by wrangler dev can be truncated mid-stack-frame, leaving a call site with an invalid column number. The source map library throws in that case, which was crashing the wrangler process entirely. The error is now caught and the original (un-source-mapped) text is returned instead.

• #14118 b38823f Thanks @​aicayzer! - Fix Uint8Array step outputs in local Workflows being persisted with the full backing ArrayBuffer

  A Uint8Array returned from a Workflows step under wrangler dev was serialised together with its full underlying ArrayBuffer, causing a raw SQLITE_TOOBIG error at view sizes well below the documented 1MiB step-output limit. For example, a 200KB view sliced from an 800KB buffer (a common pattern from crypto.getRandomValues or arr.slice(...) on a larger pool) would fail. The view's bytes are now copied to a tight buffer before persistence, bringing local behaviour in line with production. Fixes #14101.

• Updated dependencies [b38823f]:

  • miniflare@4.20260617.1

wrangler@4.102.0

Minor Changes

• #14340 f6e49dd Thanks @​emily-shen! - Add cf-wrangler build delegate support

  The experimental cf-wrangler delegate binary now accepts build and emits the Build Output API directory through Wrangler's new-config build path. This lets parent tools invoke Wrangler's build-output implementation with cf-wrangler build instead of shelling out through the public Wrangler CLI.

• #14324 36777db Thanks @​jamesopstad! - Add experimental --experimental-cf-build-output flag to wrangler build

  When used alongside --experimental-new-config, wrangler build now emits a self-contained Build Output API directory under .cloudflare/output/v0/ instead of delegating to wrangler deploy --dry-run.

Patch Changes

• #14347 673b09e Thanks @​jamesopstad! - Update undici from 7.24.8 to 7.28.0

• #14346 e930bd4 Thanks @​haidargit! - Bump ws from 8.20.1 to 8.21.0 to address GHSA-96hv-2xvq-fx4p

  GHSA-96hv-2xvq-fx4p / CVE-2026-48779 (high severity) reports a remote memory-exhaustion DoS in ws@<8.21.0: a peer sending a high volume of tiny fragments and data chunks over modest network traffic can crash a ws server or client via OOM. The fix shipped in ws@8.21.0 (commit 2b2abd45, released 2026-05-22), which also introduces the maxBufferedChunks and maxFragments options. This change bumps the workspace catalog entry so that miniflare, wrangler, and @cloudflare/vite-plugin all pick up the patched release.

• #14314 5c3bb11 Thanks @​harryzcy! - Bump esbuild to 0.28.1

... (truncated)

Commits

• 4d8ffcb Version Packages (#14353)
• 7649895 move auto provisioning to deploy-helpers (#14354)
• cfd6205 Extract autoconfig in its own standalone package (#14295)
• dd7e101 Version Packages (#14327)
• 5dfb788 Support dev.plugin on typed services bindings (#14269)
• 296ad65 Bump the workerd-and-workers-types group across 1 directory with 2 updates (#...
• f6e49dd add build command to cf-wrangler (#14340)
• 36777db Wrangler support for experimental Build Output API (#14324)
• a79b899 [wrangler] fix: respect find_additional_modules when no_bundle is set (#14315)
• 5c3bb11 Bump esbuild to 0.28.1 (#14314)
• Additional commits viewable in compare view

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