A SSRF and Arbitrary File Read vulnerability in AppSheet Core in Google AppSheet prior to 2025-11-23 allows an authenticated remote attacker to read sensitive local files and access internal network resources via crafted requests to the production cluster.
This vulnerability was patched and no customer action is needed.
Weakness
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.