PDO\Sqlite::loadExtension loads arbitrary shared objects
Open
@SakiTakamachi is already working on this.
Since May 13, 2026.
Bug
Extension: pdo_sqlite
Status: Needs Triage
- Dominant language
- C
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Description
Description
Unlike SQLite3::loadExtension, Pdo\Sqlite::loadExtension does not check sqlite3.extension_dir and calls sqlite3_load_extension with the absolute path to the extension parameter. This allows executing native code from PHP code subject to open_basedir / disable_functions (which are not security boundaries anyway).
I'll open a PR with my patch later this week. It introduces a similar check to SQLite3::loadExtension and restricts extension loading to a trusted directory (sqlite3.extension_dir) set in advance.
PHP Version
PHP 8.6.0-dev (cli) (built: May 10 2026 23:58:07) (NTS)
Copyright © The PHP Group and Contributors
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Operating System
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