Issues

• bun install ignores os/cpu for file: tarball optionalDependencies (installs every platform package)

  bugbun install
  oven-sh/bun#47640 · Filter by author lgtm-ai-bot opened on Nov 1, 2026

• bun test segfaults at address 0x0 (main thread) in a suite that spawns and terminates many worker_threads Workers (1.3.3, macOS arm64)

  oven-sh/bun#47639 · Filter by author HanMomoWow opened on Nov 1, 2026

• A file added to a package after Bun has read its folder is never found by the package name

  oven-sh/bun#47608 · Filter by author LachlanB96 opened on Nov 1, 2026
  3

• bun:test: failing matcher on a value whose printed form exceeds the max string length passes silently (1.4.2) or takes ~40 s to fail (1.4.4); deep-equality matchers ignore Bun.inspect.custom

  oven-sh/bun#47606 · Filter by author jb-pritchards opened on Nov 1, 2026

• AOT: treat Bun's built-in APIs (Bun.serve params, Bun.SQL rows, CryptoHasher, Promise.withResolvers) as typed source

  oven-sh/bun#47600 · Filter by author romulovalez opened on Nov 1, 2026

• AOT: missed-optimization for a function-typed class field holding a Promise's resolve

  oven-sh/bun#47599 · Filter by author romulovalez opened on Nov 1, 2026

• node:dns resolve rejects a NODATA answer with ENOTFOUND instead of ENODATA, unlike Node

  bugnode:dnsnode.js
  oven-sh/bun#47578 · Filter by author iuriifavi opened on Oct 31, 2026

• Bun does not reset inherited SIG_IGN dispositions (SIGINT, SIGQUIT) at startup; Node does

  oven-sh/bun#47574 · Filter by author jonathanong opened on Oct 31, 2026

• bundler: export * from a module that has top-level await is not awaited (barrel __esm wrapper does not await the re-exported init)

  oven-sh/bun#47572 · Filter by author jonathanong opened on Oct 31, 2026

• bun:test: rejects/resolves matchers still return undefined instead of Promise on 1.4.4

  bun:testduplicate
  oven-sh/bun#47556 · Filter by author maharshi365 opened on Oct 31, 2026
  1

• bun check: false TS2425 when overriding a method inherited through ReturnType

  bugtypes
  oven-sh/bun#47530 · Filter by author phil-r opened on Oct 31, 2026
  

• bun patch --commit fails with "Could not access" on Windows when a package file's path passes 260 characters

  oven-sh/bun#47499 · Filter by author YevheniiKotyrlo opened on Oct 30, 2026

• Add incremental XML parsing to Bun.XML

  oven-sh/bun#47495 · Filter by author jlucaso1 opened on Oct 30, 2026

• Bun.WebView: a native pointer move (hover(x, y) or mouseMove(x, y)), so CSS :hover can be triggered

  oven-sh/bun#47485 · Filter by author drakulavich opened on Oct 30, 2026

• Bun.$ .text() mangles non-ASCII output on Windows into uXXXX without the backslash

  oven-sh/bun#47479 · Filter by author umhapal opened on Oct 30, 2026
  2

• React Compiler with syntax minification silently drops folded parts of template literals

  bugbundlerminifierneeds triage
  oven-sh/bun#47464 · Filter by author tiagohm opened on Oct 30, 2026

• WebView.click(selector) never settles when the page navigates during the actionability wait, and blocks every later input call

  bugmacOS
  oven-sh/bun#47459 · Filter by author drakulavich opened on Oct 30, 2026
  1

• require.resolve with paths keeps a stale directory listing: a file created later is never found

  oven-sh/bun#47457 · Filter by author vizanto opened on Oct 30, 2026

• --aot: Bun.SQL internals fail ~25 type guards per query (PooledConnection, Query, SQLResultArray)

  bugperformancesingle-file-executablesql
  oven-sh/bun#47456 · Filter by author Samuron opened on Oct 30, 2026

• semver.satisfies("v27.0.0-alpha.0.0.0", ">=26.0.0") fails

  bugneeds triage
  oven-sh/bun#47421 · Filter by author lgarron opened on Oct 30, 2026

• fs.rmSync('', { recursive: true }) deletes the contents of the current directory on Windows (Node throws ENOENT)

  bugnode:fsnode.jswindows
  oven-sh/bun#47420 · Filter by author Refzlund opened on Oct 30, 2026
  1

• Bun.serve: request bodies over 256 KiB are reallocated and copied repeatedly while buffering (finish_grow ~21% of main thread for 2.4 MB bodies)

  bugbun:serveconfirmed bugperformance
  oven-sh/bun#47419 · Filter by author aerox0 opened on Oct 30, 2026

• process.stdout._handle is undefined, so setBlocking(true) is a no-op and native or writeSync writes to a piped fd 1 fail with EAGAIN after 8 KB (Linux)

  bugnode.js
  oven-sh/bun#47408 · Filter by author Mattslayga opened on Oct 29, 2026

• [node compat] net.connect: EINVAL instead of ENOENT for long Unix socket paths with missing parents

  bugconfirmed bugnode.jsnode:net
  oven-sh/bun#47407 · Filter by author johnemau opened on Oct 29, 2026

• static_initializer prop

  bugneeds triagetranspilertypescript
  oven-sh/bun#47399 · Filter by author hyuzea opened on Oct 29, 2026
  2