Symlink Attack

Overview org.webjars.npm:decompress is a package that can be used for extracting archives. Affected versions of this package are vulnerable to Symlink Attack via the fs.link process. An attacker can gain unauthorized access to sensitive files or corrupt file contents by crafting an archive...

CVE-2026-39243: Improper Link Resolution Before File Access

decompress before 4.2.2 allows arbitrary hardlink creation during archive extraction, enabling file read disclosure and file corruption. When processing hardlink entries type === 'link', the x.linkname field from the archive is passed directly to fs.link without validation index.js line 113. An...