AGL app-framework-main thru 17.1.12 contains a Zip Slip path traversal vulnerability (CWE-22) combined with a TOCTOU race condition (CWE-367) in the widget installation flow. The isvalidfilename function in wgtpkg-zip.c validates ZIP entry names but does not check for dot notation directory traversal sequences it only blocks absolute paths. The zread extraction function uses openat(workdirfd, filename, OCREAT) which resolves dot notation values relative to the work directory, allowing files to be written anywhere on the filesystem. Critically, in function installwidget in file wgtpkg-install.c, extraction via zread occurs BEFORE signature verification via checkallsignatures. Even if signature verification fails, the error cleanup (removeworkdir) only deletes the temporary work directory files written outside via path traversal persist permanently.