CVE-2025-27621
HighCVSS 7.7Summary
UpTrain version 0.7.1 and earlier creates a default user with a static username, which is also used as the default API key. The backend has an open CORS policy, allowing any website to make authenticated cross-origin requests using the default API key in the `uptrain-access-token` header. This may allow arbitrary websites to perform privileged operations on the UpTrain instance.
Risk Assessment
Any website can perform administrative operations on the UpTrain instance, potentially leading to unauthorized access and data manipulation.
Recommendation
Change default credentials and API key, and configure CORS policy to allow only trusted domains. Consider adding additional authentication mechanisms.
Original NVD description (English source)
UpTrain is an open-source platform to evaluate and improve generative AI applications. In version 0.7.1 and prior, the UpTrain backend creates a new default user with a static username, where the username is also used as the default API key. The UpTrain backend also has an open CORS policy. Using these two primitives, any website can make a authenticated cross-origin request to the UpTrain instance by providing the default API key in the header `uptrain-access-token`. This issue may allow arbitrary websites to perform privileged operations on the UpTrain instance, as if they were the default logged in user. As of time of publication, no known patches are available.