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fix(deps): update dependency file-type to v21 [security]#79

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fix(deps): update dependency file-type to v21 [security]#79
renovate[bot] wants to merge 1 commit intomainfrom
renovate/npm-file-type-vulnerability

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@renovate renovate bot commented Mar 11, 2026

This PR contains the following updates:

Package Change Age Confidence
file-type ^16.5.4^21.0.0 age confidence

GitHub Vulnerability Alerts

CVE-2026-31808

Impact

A denial of service vulnerability exists in the ASF (WMV/WMA) file type detection parser. When parsing a crafted input where an ASF sub-header has a size field of zero, the parser enters an infinite loop. The payload value becomes negative (-24), causing tokenizer.ignore(payload) to move the read position backwards, so the same sub-header is read repeatedly forever.

Any application that uses file-type to detect the type of untrusted/attacker-controlled input is affected. An attacker can stall the Node.js event loop with a 55-byte payload.

Patches

Fixed in version 21.3.1. Users should upgrade to >= 21.3.1.

Workarounds

Validate or limit the size of input buffers before passing them to file-type, or run file type detection in a worker thread with a timeout.

References

  • Fix commit: 319abf871b50ba2fa221b4a7050059f1ae096f4f

Reporter

crnkovic@lokvica.com


Release Notes

sindresorhus/file-type (file-type)

v21.3.1

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  • Fix infinite loop in ASF parser on malformed input 319abf8

v21.3.0

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  • Add support for Mach-O Universal (aka "Fat") binaries and additional architectures (#​779) d223491

v21.2.0

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v21.1.1

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v21.1.0

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v21.0.0

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Breaking
  • Require Node.js 20 24aec1f
  • Drop Adobe Illustrator (.ai) detection support (#​743) af169f3
  • Correct Matroska (video) MIME-type to formal IANA registration (#​753) f53f5ff
  • Correct FLAC MIME-type to formal IANA registration (#​755) b9fda36
  • Correct Apache Parquet MIME-type to formal IANA registration (#​748) 98e3f8e
  • Correct Apache Arrow MIME-type to formal IANA registration (#​754) 7184775
Improvements
Fixes

v20.5.0

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  • Add support Office PowerPoint 2007 (macro-enabled) slide show (#​747) f1b4c7a

v20.4.1

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  • Add workaround for using bundler as the module-resolution in TypeScript (#​744) 90bfe33

v20.4.0

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v20.3.0

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v20.2.0

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v20.1.0

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v20.0.1

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v20.0.0

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Breaking
  • Drop MIME-type and extension enumeration in types (#​693) 0ff11c6
  • Remove NodeFileTypeParser in favor of using FileTypeParser on all platforms (#​707) ff8eed8
Improvements
Fixes

v19.6.0

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v19.5.0

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v19.4.1

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  • Fix passing options to fileTypeStream in default entry point (#​653) ea314a4

v19.4.0

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v19.3.0

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v19.2.0

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v19.1.1

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  • Fix Node.js entry point export fileTypeFromTokenizer (#​639) 20fdba7

v19.1.0

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Release notes

  • Please note that fileTypeFromBlob(blob) is streaming the Blob instead of buffering, which require at least Node.js ≥ 20.

v19.0.0

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Breaking
  • Require Node.js 18 7f4b30b
  • Use mime type audio/wav instead of audio/vnd.wave for .wav files (#​620) c7c923c

v18.7.0

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v18.6.0

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v18.5.0

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v18.4.0

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v18.3.0

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v18.2.1

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v18.2.0

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v18.1.0

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Improvements
Fixes

v18.0.0

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Breaking

v17.1.6

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v17.1.5

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  • Fix PDF detection in some cases a0c24eb

v17.1.4

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v17.1.3

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v17.1.2

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v17.1.1

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v17.1.0

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v17.0.2

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  • Prevent "Concurrent read operation" error to be thrown in some cases while reading from a stream (#​510) 565f7f3

v17.0.1

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  • Update strtok3 & token-types dependencies for explicit node:buffer imports (#​507) b27fb5f

v17.0.0

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Breaking
  • Require Node.js 12.20 (#​472) 826b4ad
  • This package is now pure ESM. Please read this.
  • Remove the /browser sub-export 287e361
    • Browser support is now included by default.
  • Moved from a default export to named exports:
    require('file-type').fromBufferimport {fileTypeFromBuffer} from 'file-type'
    require('file-type').fromFileimport {fileTypeFromFile} from 'file-type'
    require('file-type').fromStreamimport {fileTypeFromStream} from 'file-type'
    require('file-type').fromTokenizerimport {fileTypeFromTokenizer} from 'file-type'
    require('file-type').streamimport {fileTypeStream} from 'file-type'
    require('file-type').extensionsimport {supportedExtensions} from 'file-type'
    require('file-type').mimeTypesimport {supportedMimeTypes} from 'file-type'
Improvements
Fixes

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