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[Bug?]: (cross-post) EBADF: bad file descriptor, fstat with latest NodeJS v25 releases #7065

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[Bug?]: (cross-post) EBADF: bad file descriptor, fstat with latest NodeJS v25 releases#7065
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bugSomething isn't working

Description

@jnoordsij
jnoordsij
opened on Mar 10, 2026

Self-service

  • I'd be willing to implement a fix

Describe the bug

(cross-post of nodejs/node#62012 which may be relevant and/or solvable here)

With the latest NodeJS v25 releases (>= 25.7.0), a variety of tooling (e.g. ESLint, Vite) runs into an immediate error when used with Yarn PnP:

Error: EBADF: bad file descriptor, fstat

This can also be observed on the latest test workflows for the master branch in this repository; see e.g. https://github.com/yarnpkg/berry/actions/runs/22605132315/job/65618028428.

From nodejs/node#62012 (comment):

Don't know if this has anything to do with their esm loader's load hook returning source: undefined when passed format: 'commonjs'. Looking at the debug output, createCJSModuleWrap was previously being called with translateContext.source fully populated, whereas it's now being called with translateContext.source: undefined.

This seems to suggest there may be a way to fix this here. Otherwise if this is a break in NodeJS behavior which should be addressed there, it might be worthwhile to post additional context on nodejs/node#62012.

To reproduce

  1. Install NodeJS v25.7.0 or higher
  2. Install Yarn through e.g. Corepack
  3. yarn init && yarn add -D eslint && yarn eslint

See also nodejs/node#62012 (comment).

Environment

System:
    OS: observed on Windows 11 10.0.26200 / Alpine 3.23 / MacOS (likely more)
    CPU: varying
  Binaries:
    Node: >= 25.7.0
    Yarn: 4.12.0

Additional context

Thanks a lot for spending any time looking into this!

Activity

  1. jnoordsij
    added
    bugSomething isn't working
    on Mar 10, 2026
  2. retrixe
    added 2 commits that reference this issue on Mar 14, 2026

    Run Actions using Node.js LTS versions

    70a6629

    Run Actions using Node.js LTS versions

    735f839

  3. ZeWaka commented on Mar 17, 2026

    @ZeWaka
    ZeWaka
    on Mar 17, 2026

    Yep getting this too! Here are some debug logs if it helps assist.
    Using yarn 4.12.0 PnP, Node v25.8.1, rspack 1.7.8

    logspam 

    MODULE 8692: Module._load checking cache for assert false
MODULE 8692: load built-in module assert
ESM 8692: Storing file:///X:/repos/goonstation/tgui/[eval1] (implicit type) in ModuleLoadMap
ESM 8692: Storing file:///X:/repos/goonstation/tgui/[eval1] (implicit type) in ModuleLoadMap
ESM 8692: ModuleJob.run() ModuleWrap {
  hasTopLevelAwait: false,
  sourceURL: undefined,
  sourceMapURL: undefined,
  synthetic: false,
  url: 'file:///X:/repos/goonstation/tgui/[eval1]',
  isMain: true
}
ESM 8692: async addJobsToDependencyGraph() file:///X:/repos/goonstation/tgui/[eval1] 
ModuleJob {
    loader: ModuleLoader {
    loadCache: LoadCache(1) [Map] {
      'file:///X:/repos/goonstation/tgui/[eval1]' => [Object: null prototype]
    },
    isForAsyncLoaderHookWorker: false
  },
  importAttributes: [Object: null prototype] {},
  phase: 2,
  isMain: false,
  inspectBrk: false,
  url: 'file:///X:/repos/goonstation/tgui/[eval1]',
  module: ModuleWrap {
    hasTopLevelAwait: false,
    sourceURL: undefined,
    sourceMapURL: undefined,
    synthetic: false,
    url: 'file:///X:/repos/goonstation/tgui/[eval1]',
    isMain: true
  },
  modulePromise: Promise {
    ModuleWrap {
      hasTopLevelAwait: false,
      sourceURL: undefined,
      sourceMapURL: undefined,
      synthetic: false,
      url: 'file:///X:/repos/goonstation/tgui/[eval1]',
      isMain: true
    }
  },
  commonJsDeps: [],
  linked: [],
  instantiated: undefined
}
ESM 8692: Translating CJSModule file:///X:/repos/goonstation/tgui/.yarn/__virtual__/@rspack-core-virtual-f57d04e700/0/cache/@rspack-core-npm-1.4.11-6fbee5ea82-56a3a98f34.zip/node_modules/@rspack/core/dist/index.js [Object: null prototype] {  format: 'commonjs',
  responseURL: 'file:///X:/repos/goonstation/tgui/.yarn/__virtual__/@rspack-core-virtual-f57d04e700/0/cache/@rspack-core-npm-1.4.11-6fbee5ea82-56a3a98f34.zip/node_modules/@rspack/core/dist/index.js',
  source: undefined,
  translatorKey: 'commonjs'
}
Error: EBADF: bad file descriptor, fstat
    at tryStatSync (node:fs:386:25)
    at readFileSync (node:fs:442:17)
    at getSourceSync (node:internal/modules/esm/load:37:14)
    at createCJSModuleWrap (node:internal/modules/esm/translators:209:32)       
    at ModuleLoader.commonjsStrategy (node:internal/modules/esm/translators:348:10)
    at #translate (node:internal/modules/esm/loader:451:20)
    at afterLoad (node:internal/modules/esm/loader:507:29)
    at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:512:12)  
    at #getOrCreateModuleJobAfterResolve (node:internal/modules/esm/loader:555:36)
    at afterResolve (node:internal/modules/esm/loader:603:52) {
  errno: -4083,
  code: 'EBADF',
  syscall: 'fstat'
}

  4. arcanis
    added a commit that references this issue on Mar 30, 2026

    fix: Node 25.7+ EBADF by reading CJS source of zip files (#7070)

    deaf916

  5. BinToss commented on Apr 6, 2026

    @BinToss
    BinToss
    on Apr 6, 2026

    I'm experiencing this issue with commitlint. Originally, it failed when opening commitlint's main module, but that was resolved by yarn unplug commitlint. Now, it occurs when accessing semver. Specifically, file:///home/noah/.yarn/berry/cache/semver-npm-7.7.4-746e538da5-10c0.zip/node_modules/semver/index.js

    $ yarn commitlint
node:fs:386
  const stats = binding.fstat(fd, false, undefined, true /* shouldNotThrow */);
                        ^

Error: EBADF: bad file descriptor, fstat
    at tryStatSync (node:fs:386:25)
    at readFileSync (node:fs:442:17)
    at getSourceSync (node:internal/modules/esm/load:37:14)
    at createCJSModuleWrap (node:internal/modules/esm/translators:211:32)
    at ModuleLoader.commonjsStrategy (node:internal/modules/esm/translators:350:10)
    at #translate (node:internal/modules/esm/loader:451:20)
    at afterLoad (node:internal/modules/esm/loader:507:29)
    at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:512:12)
    at #getOrCreateModuleJobAfterResolve (node:internal/modules/esm/loader:555:36)
    at afterResolve (node:internal/modules/esm/loader:603:52) {
  errno: -9,
  code: 'EBADF',
  syscall: 'fstat'
}

Node.js v25.9.0

    To learn which package(s) failed to load, I ran the CLI command in a javascript debugger and checked the path variable in the readFileSync part of the call stack.

    For now, I've locked down Engines in my package.json files and set up NVM.

  6. brandonbothell commented on Apr 22, 2026

    @brandonbothell
    brandonbothell
    on Apr 22, 2026
    Contributor

    Is this still happening to anyone else with yarn 4.14.1 on node v24.15 and >=25.7?

    I have to set my engines.node to >=18.0 <24.15 || >=25.0 <25.7 and use a strict node version check script in my .yarnrc.yml to guarantee compatibility without confusing errors.

    The following error occurs when running mocha with yarn.
    Mocha is its latest version, v11.7.5:

    λ yarn -v
4.14.1

λ yarn mocha --exit --require ts-node/register/transpile-only --require source-map-support/register --recursive \"./test/*.spec.ts\" --timeout 30000
node:fs:391
  const stats = binding.fstat(fd, false, undefined, true /* shouldNotThrow */);
                        ^

Error: EBADF: bad file descriptor, fstat
    at tryStatSync (node:fs:391:25)
    at readFileSync (node:fs:447:17)
    at getSourceSync (node:internal/modules/esm/load:37:14)
    at createCJSModuleWrap (node:internal/modules/esm/translators:210:32)
    at ModuleLoader.commonjsStrategy (node:internal/modules/esm/translators:349:10)
    at #translate (node:internal/modules/esm/loader:451:20)
    at afterLoad (node:internal/modules/esm/loader:507:29)
    at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:512:12)
    at #getOrCreateModuleJobAfterResolve (node:internal/modules/esm/loader:555:36)
    at afterResolve (node:internal/modules/esm/loader:603:52) {
  errno: -4083,
  code: 'EBADF',
  syscall: 'fstat'
}

Node.js v24.15.0

  7. jkowalleck commented on Apr 22, 2026

    @jkowalleck
    jkowalleck
    on Apr 22, 2026
    Contributor

    Is this still happening to anyone else with yarn 4.14.1 on node v24.15 and >=25.7?

    Tested: https://github.com/jkowalleck/playground_yarn4_EBADF_tests
    Test matrix results: https://github.com/jkowalleck/playground_yarn4_EBADF_tests/actions/runs/24769755781

    • still seeing the issue on node26-nightly ubuntu-latest
    • still seeing the issue on node26-nightly macos-latest
    • still seeing the issue on node25.9.0 ubuntu-latest
    • still seeing the issue on node25.9.0 macos-latest
    • still seeing the issue on node24.15.0 windows-latest
    • seams to be fixed on node26-nightly windows-latest
    • seams to be fixed on node25-nightly all
    • seams to be fixed on node25.9.0 windows-latest

  8. brandonbothell commented on Apr 22, 2026

    @brandonbothell
    brandonbothell
    on Apr 22, 2026
    Contributor
    * seams to be fixed on node25.9.0 windows-latest

    On windows 11 using nvm, I'm not sure if this is windows-latest

    > nvm use 25.9                                                  
Now using node v25.9.0 (64-bit)
> yarn test:http            
node:fs:386
  const stats = binding.fstat(fd, false, undefined, true /* shouldNotThrow */);
                        ^

Error: EBADF: bad file descriptor, fstat
    at tryStatSync (node:fs:386:25)
    at readFileSync (node:fs:442:17)
    at getSourceSync (node:internal/modules/esm/load:37:14)
    at createCJSModuleWrap (node:internal/modules/esm/translators:211:32)
    at ModuleLoader.commonjsStrategy (node:internal/modules/esm/translators:350:10)
    at #translate (node:internal/modules/esm/loader:451:20)
    at afterLoad (node:internal/modules/esm/loader:507:29)
    at ModuleLoader.loadAndTranslate (node:internal/modules/esm/loader:512:12)
    at #getOrCreateModuleJobAfterResolve (node:internal/modules/esm/loader:555:36)
    at afterResolve (node:internal/modules/esm/loader:603:52) {
  errno: -4083,
  code: 'EBADF',
  syscall: 'fstat'
}

Node.js v25.9.0

  9. tfp-rv commented on Apr 24, 2026

    @tfp-rv
    tfp-rv
    on Apr 24, 2026

    Can confirm, also still experiencing this on Windows with yarn 4.14.1 and node 25.9.0.

  10. arcanis commented on Apr 24, 2026

    @arcanis
    arcanis
    on Apr 24, 2026
    Member

    Node.js fixed the regression, we're waiting for the next 24.x and 25.x releases

  11. brandonbothell commented on Apr 24, 2026

    @brandonbothell
    brandonbothell
    on Apr 24, 2026
    Contributor

    Node.js fixed the regression, we're waiting for the next 24.x and 25.x releases

    For anyone else that was curious, I guess this was because yarn patches the 'fs' api to add support for .zip files before node uses it in its ESM loader, and a recent node update affected the loading order of modules so that the unpatched versions of fs functions would be cached before yarn and other modules would patch them.

    It appears that a simple update was all that was needed for now, which loads the fs methods needed by the ESM loader upon their use instead of caching them upon module load (before yarn can patch them)

    It seems that node may not leave FS patchable like this forever, but at the same time there is a virtual filesystem PR under review that looks promising. Hopefully we won't have to deal with these random fs issues for much longer, then.

  12. jkowalleck commented on Apr 25, 2026

    @jkowalleck
    jkowalleck
    on Apr 25, 2026
    Contributor

    Node.js fixed the regression, we're waiting for the next 24.x and 25.x releases

    confirm and agree.

    re #7065 (comment)

    Tested: https://github.com/jkowalleck/playground_yarn4_EBADF_tests
    Test matrix results: https://github.com/jkowalleck/playground_yarn4_EBADF_tests/actions/runs/24923966694

    • seams to be fixed on node26-nightly ubuntu-latest
    • seams to be fixed on node26-nightly windows-latest
    • seams to be fixed on node26-nightly macos-latest
    • seams to be fixed on node25-nightly ubuntu-latest
    • seams to be fixed on node25-nightly windows-latest
    • seams to be fixed on node25-nightly macos-latest

    waiting for the next 24.x and 25.x releases

  13. cativo23
    added a commit that references this issue on May 2, 2026

    fix: docker dev build (Yarn 4.14.1) + soft-delete leak in paginated l…

    7c39e00

  14. jkowalleck commented on May 6, 2026

    @jkowalleck
    jkowalleck
    on May 6, 2026
    Contributor

    addded node26 and node24-nightly to my tests:

    Tested: https://github.com/jkowalleck/playground_yarn4_EBADF_tests
    Test matrix results: https://github.com/jkowalleck/playground_yarn4_EBADF_tests/actions/runs/25425869432

    used yarn v4.14.1

    findings

    • node26-nightly - worked on all
    • node25-nightly - worked on all
    • node24-nightly - worked on all
    • node26 v26.0.0 - worked on windows
    • node26 v26.0.0 - failed on ubuntu
    • node26 v26.0.0 - failed on macOS
    • node25 v25.9.0 - worked on windows
    • node25 v25.9.0 - failed on ubuntu
    • node25 v25.9.0 - failed on macOS
    • node24 v24.14.1 - worked on ubuntu
    • node24 v24.14.1 - failed on windows
    • node24 v24.14.1 - failed on macOS
    • node 22 and below: just worked

  15. jnoordsij commented on May 6, 2026

    @jnoordsij
    jnoordsij
    on May 6, 2026
    Author

    nodejs/node#62835 did not make it to 26.0.0 unfortunately, but is in 26.1.0 so hopefully from there on things are working. No idea when 24/25 are receiving new releases, but the fix should be in the respective branches already.

    (and from what it seems test matrix above seems to confirm this claim)

  16. lukas-w
    added a commit that references this issue on May 17, 2026

    Don't use yarn in publish scripts

    ad8577d

  17. SparK-Cruz commented on May 18, 2026

    @SparK-Cruz
    SparK-Cruz
    on May 18, 2026

    Failing on both ubuntu and manjaro, node 25.9

  18. rogueg
    added a commit that references this issue on May 19, 2026

    pin actions node version

    b0a5dc1
  19. MagicalBridge
    added a commit that references this issue on May 27, 2026

    fix(ci): Upgrade Yarn to 4.14.1 + install libusb for native modules

    969a7e8

  20. jnoordsij commented on Jul 23, 2026

    @jnoordsij
    jnoordsij
    on Jul 23, 2026
    Author

    This should be fixed now on all supported Node.js versions. 25 is considered EOL and as such will never receive a fix for this anymore.

  21. jnoordsij
    closed this as completedon Jul 23, 2026
  22. hikaMaeng
    added a commit that references this issue on Jul 26, 2026

    Correct the Node constraint: exclude the broken window, not cap at 24

    ace5f2b
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