CVE-2025-27621
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk37th percentile - higher than 37% of all known CVEs
Summary
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.
Other vulnerabilities in UpTrain
See all- CVE-2025-27772High
In UpTrain version 0.7.1 and prior, the /new_run endpoint is vulnerable to remote code execution via the checks and metadata parameters. Any user with access to UpTrain and a valid authentication method may be able to execute arbitrary code in the context of the host running UpTrain, which in most cases will be the docker container.
- CVE-2025-27771High
In UpTrain version 0.7.1 and prior, the /add_prompts endpoint is vulnerable to remote code execution via the checks and metadata parameters. Any user with access to UpTrain and a valid authentication method may be able to execute arbitrary code in the context of the host running UpTrain, which in most cases will be the docker container.
- CVE-2025-27770High
UpTrain version 0.7.1 and earlier contains a remote code execution vulnerability in the `/create_project` endpoint via the `checks` and `metadata` parameters. Any user with access to UpTrain and valid authentication can execute arbitrary code in the context of the host running UpTrain, usually a Docker container. No patch is available as of publication.
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS