psy/psysh v0.12.19

PsySH v0.12.19

on PHP Packagist

⚠️ Security fix

Fixed a CWD configuration poisoning vulnerability (CVE-2026-25129) where a malicious .psysh.php file in an attacker-writable directory could execute arbitrary code when a victim runs PsySH from that directory. This affects all versions prior to v0.12.19 and v0.11.23, including downstream consumers like Laravel Tinker, when invoked from an attacker-writable CWD.

Fixed in v0.12.19 and v0.11.23. Upgrade ASAP.

Restricted Mode

PsySH now requires explicit trust before loading project-local config (.psysh.php), local PsySH binaries, or Composer autoloads from untrusted projects. Trust decisions are persisted per-project in trusted_projects.json.

Configure with trustProject:

'trustProject' => 'prompt',  // default — ask interactively
'trustProject' => 'always',  // trust all projects
'trustProject' => 'never',   // always run restricted

Or use --trust-project / --no-trust-project CLI flags, or the PSYSH_TRUST_PROJECT env var.

Non-interactive sessions automatically skip untrusted features with a warning.

Magic method and property support 🪄

Tab completion, ls, doc, and show commands now recognize @method and @property docblock tags. Magic members display in magenta so you can tell them apart from real methods and properties.

Inheritance works as expected — magic members from parent classes, interfaces, and traits are included, with child declarations taking precedence.

Also fixes parsing of generic types (e.g., array<int, string>) in docblock tags, which previously broke on whitespace inside angle brackets.

See #905

Improvements

• Excluded a few unnecessary files and folders from release source zips (Thanks @reedy!)
• Fixed --cwd to actually change the working directory. Previously it only affected discovery for autoload/config, so relative paths and other directory-dependent behavior didn’t work as expected inside the shell.
• Significantly improved memory usage with older php-parser versions (pre-v4.18.0)