Black Friday 2021 Offers 30% discount on Certification, Coaching, and SymfonyInsight Teams subscriptions

CVE-2019-11325: Fix escaping of strings in VarExporter

Affected versions

Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7 versions of the Symfony VarExporter component are affected by this security issue.

The issue has been fixed in Symfony 4.2.12 and 4.3.8.


Some strings were not properly escaped when being dumped by the VarExporter component. The VarExporter is notably used by the Symfony Cache Component PhpFilesAdapter and PhpArrayAdapter adapters.


The escaping logic has been fixed to work for any strings.

The patch for this issue is available here for branch 4.2.


I would like to thank Seung Woo Yuk (xtac) for reporting & Nicolas Grekas for identifying & fixing the issue.

Manage your notification preferences to receive an email as soon as a Symfony security release is published.
If you have found a security issue in Symfony, please send the details to security [at] and don't disclose it publicly until we can provide a fix for it.
Help the Symfony project!

As with any Open-Source project, contributing code or documentation is the most common way to help, but we also have a wide range of sponsoring opportunities.


Comments are closed.

To ensure that comments stay relevant, they are closed for old posts.