Project: 
Drupal core
Date: 
2020-June-17
Security risk: 
Less critical 8∕25 AC:Complex/A:User/CI:None/II:Some/E:Theoretical/TD:Uncommon
Vulnerability: 
Access bypass
Affected versions: 
>= 8.0.0 <8.8.8 || >= 8.9.0 <8.9.1 || >=9.0.0 <9.0.1
CVE IDs: 
CVE-2020-13665
Description: 

JSON:API PATCH requests may bypass validation for certain fields.

By default, JSON:API works in a read-only mode which makes it impossible to exploit the vulnerability. Only sites that have the read_only set to FALSE under jsonapi.settings config are vulnerable.

Solution: 

Install the latest version:

Versions of Drupal 8 prior to 8.8.x are end-of-life and do not receive security coverage. Sites on 8.7.x or earlier should update to 8.8.8.

Reported By: 
Fixed By: