CVE-2026-37531 - Apache Gears Zip Slip Path Traversal with TOCTOU Race Condition

CVE-2026-37531 - Apache Gears Zip Slip Path Traversal with TOCTOU Race Condition

https://cvefeed.io/rssfeed/latest.atom / Fri, 05/01/2026 - 20:21
CVE ID :CVE-2026-37531
Published : May 1, 2026, 5:16 p.m. | 59 minutes ago
Description :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 is_valid_filename 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, O_CREAT) which resolves dot notation values relative to the work directory, allowing files to be written anywhere on the filesystem. Critically, in function install_widget in file wgtpkg-install.c, extraction via zread occurs BEFORE signature verification via check_all_signatures. Even if signature verification fails, the error cleanup (remove_workdir) only deletes the temporary work directory files written outside via path traversal persist permanently.
Severity: 9.8 | CRITICAL
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