Description
file-type detects the file type of a file, stream, or data. Prior to 21.3.1, 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. Fixed in version 21.3.1.
INFO
Published Date :
2026-03-10T21:01:55.466Z
Last Modified :
2026-03-11T16:00:14.754Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-31808 vulnerability.
| Vendors | Products |
|---|---|
| Sindresorhus |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31808.
