HexBrain

Nextcloud · Report #1018146

Potential DDoS when posting long data into workflow validation rules

Validstatus
mediumseverity
6upvotes
21 Jan 2021disclosed

Summary

A missing input validation in Nextcloud Server 20.0.1 allowed users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.

How it was found

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