Cross-Site Request Forgery (CSRF) in strawberry-graphql

Impact

Multipart file upload support as defined in the GraphQL multipart request specification was enabled by default in all Strawberry HTTP view integrations. This made all Strawberry HTTP view integrations vulnerable to CSRF attacks if users did not explicitly enable CSRF preventing security mechanism for their servers.
Additionally, the Django HTTP view integration, in particular, had an exemption for Django's built-in CSRF protection (i.e., the CsrfViewMiddleware middleware) by default.

In affect, all Strawberry integrations were vulnerable to CSRF attacks by default.

Patches

Version v0.243.0 is the first strawberry-graphql including a patch. Check out our documentation for additional details and upgrade instructions.

References

• Strawberry upgrade guide
• Multipart Upload Security Implications

Credits

• Thomas Grainger
• Arthur Bayr
• Jonathan Ehwald