v1.13.2

FrankenPHP 1.13.2 is a security release. Its Docker images and static binaries are built with the PHP versions that fix PHP2Shell (CVE-2026-109618 and CVE-2026-109619), two critical vulnerabilities allowing unauthenticated remote code execution. It also fixes 4 vulnerabilities in FrankenPHP itself, including a high-severity one that let a local user get their PHP code executed by a service running an embedded app. It also makes frankenphp_log() available in php-cli, stops hot reload from serving stale pages, and moves static builds to static-php-cli v3. Static builds have a few changes worth reading in the upgrade notes below. Upgrading is strongly recommended.

🔒 Security

• Critical, PHP2Shell: Docker images are built with PHP 8.2.35, 8.3.36, 8.4.27 and 8.5.12, and static binaries with PHP 8.5.12. These versions fix CVE-2026-109618 and CVE-2026-109619, which allow unauthenticated remote code execution and have no complete mitigation besides upgrading (PHP security advisory).
• High: Embedded apps were extracted to a predictable directory in the shared temp dir, and existing files were reused. A local user could precreate that directory and get their PHP code executed by the service. Apps are now extracted atomically to a per-user directory, which is only reused when the current user owns it (GHSA-6q3j-62j9-f9hh).
• Requests waiting for a PHP thread are now dropped when their client disconnects. Before this fix, an unauthenticated client could queue requests, disconnect and keep the thread pool busy for everyone else (GHSA-fq24-r53r-xcx3).
• Cyclic arrays are now rejected when PHP values are converted to Go. A self-referencing array passed to frankenphp_log(), returned by a worker callback or given to the extension API overflowed the stack and crashed the whole process (GHSA-ccgp-ch9h-533f).
• Worker mode: The errors returned by error_get_last() and libxml_get_errors() are now cleared at the end of each request. Before this fix, they could leak fragments of a previous client's input and server paths into the next request served by the same thread (GHSA-4gfw-9v29-gp9h).

⚠️ Upgrade Notes

Static builds now use static-php-cli v3 by @henderkes in #2618:

• macOS: Binaries are only published for Apple Silicon. There is no frankenphp-mac-x86_64 asset anymore. On Intel Macs, build from source with build-static.sh.
• glibc builds: The -gnu binary now requires glibc 2.28 or later, instead of 2.17.
• Static builder images: Run them with docker run and pass PHP_EXTENSIONS, PHP_EXTENSION_LIBS, XCADDY_ARGS and the other options as environment variables instead of Docker build args. The binary is written to the mounted /output directory, and the defaults now live in craft.yml. See the static build docs.

✨ New Features

• CLI: frankenphp_log() and the FRANKENPHP_LOG_LEVEL_* constants are now available in php-cli, so code shared between web requests and commands can log the same way. Entries use the server's format and are written to stderr. The Caddyfile isn't loaded, so its log directives don't apply by @dunglas in #2719.
• Extensions: frankenphp_thread_index() is exported again for C extensions such as frankenstate and frankenasync by @nickchomey in #2717.

🐛 Bug Fixes

• Hot reload: opcache.revalidate_freq now defaults to 0 when hot_reload is configured. With the default of 2, the page fetched right after a change often came back unchanged. A value set in php.ini, in PHP_INI_SCAN_DIR or with the php_ini directive still takes precedence by @dunglas in #2680.
• Caddy: Thread and request counts are now parsed as int. On 32-bit platforms (linux/386, linux/arm/v6 and linux/arm/v7), out-of-range values wrapped to negative numbers, so max_threads 4294967295 meant auto. They now return a range error by @dunglas in #2722.
• Static builds: types.h is renamed to frankenphp_types.h, because libwebp's header with the same name shadowed it and broke the build by @alexandre-daubois in #2728.

📖 Documentation

• Explain how to publish Mercure updates from php-cli through the hub's POST endpoint, and why detecting mercure_publish() while warming caches disables it in the web server too by @dunglas in #2718.
• Fix the Russian translation by @chubakur in #2712.

💖 New Contributors

• @chubakur made their first contribution in #2712
• @zaccesss made their first contribution in #2726
• @nickchomey made their first contribution in #2717
• @sergehardy made their first contribution in #1926

Full Changelog: v1.13.1...v1.13.2