yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser
Summary
yauzl 3.2.0 - Denial of Service via Off-by-One Error in NTFS Timestamp Parser
Original description
The description as published by the source.
yauzl (aka Yet Another Unzip Library) version 3.2.0 for Node.js contains an off-by-one error in the NTFS extended timestamp extra field parser within the getLastModDate() function. The while loop condition checks cursor < data.length + 4 instead of cursor + 4 <= data.length, allowing readUInt16LE() to read past the buffer boundary. A remote attacker can cause a denial of service (process crash via ERR_OUT_OF_RANGE exception) by sending a crafted zip file with a malformed NTFS extra field. This affects any Node.js application that processes zip file uploads and calls entry.getLastModDate() on parsed entries. Fixed in version 3.2.1.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Ubuntu UBUNTU-CVE-2026-31988 node-yauzl
References
- advisory github.com
- advisory nvd.nist.gov
- advisory codeant.ai
- advisory vulncheck.com
- patch github.com
- web npmjs.com