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-2026-39245

CVE-2026-39245 affects the decompress package (before 4.2.2). The vulnerability arises from an improper path containment check during extraction: safeMakeDir (index.js:29) and extraction path validation (index.js:106) rely on realDestinationDir.indexOf(realOutputPath) !== 0. This boundary check f...