CVE-2026-39245

decompress before 4.2.2 contains an improper path containment check that enables directory traversal and arbitrary file write. The safeMakeDir function index.js line 29 and the extraction path validation index.js line 106 use String.indexOf to verify the resolved path is within the output...

CVE-2026-39246

decompress before 4.2.2 allows arbitrary symlink creation during archive extraction. When processing symlink entries type === 'symlink', the x.linkname field from the archive is passed directly to fs.symlink without validation index.js line 121. The preventWritingThroughSymlink check on line 98...