file-type affected by infinite loop in ASF parser on malformed input with zero-size sub-header

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.ignorepayload to move the rea...

CVE-2026-31808

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...

CVE-2026-31808 file-type affected by infinite loop in ASF parser on malformed input with zero-size sub-header

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...

CVE-2026-31808

The file-type library is affected by a denial-of-service in the ASF (WMV/WMA) file-type parser prior to 21.3.1. When parsing a crafted input where an ASF sub-header has a size field of zero, the parser loops infinitely because tokenizer.ignore(payload) moves read position backwards, causing the s...