chore(deps): update dependency file-type to v21.3.1 [security]#494
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This PR contains the following updates:
21.3.0→21.3.1GitHub 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
sizefield of zero, the parser enters an infinite loop. Thepayloadvalue becomes negative (-24), causingtokenizer.ignore(payload)to move the read position backwards, so the same sub-header is read repeatedly forever.Any application that uses
file-typeto 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
Reporter
crnkovic@lokvica.com
Release Notes
sindresorhus/file-type (file-type)
v21.3.1Compare Source
319abf8Configuration
📅 Schedule: Branch creation - "" in timezone Asia/Shanghai, Automerge - At any time (no schedule defined).
🚦 Automerge: Enabled.
♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
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