In lunary-ai/lunary before version 1.6.3, the application allows the creation of evaluators without enforcing a unique constraint on the combination of projectId and slug. This allows an attacker to overwrite existing data by submitting a POST request with the same slug as an existing evaluator. The lack of database constraints or application-layer validation to prevent duplicates exposes the application to data integrity issues. This vulnerability can result in corrupted data and potentially malicious actions, impairing the system's functionality.

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CWE-837

https://github.com/lunary-ai/lunary/commit/79dc370596d979b756f6ea0250d97a2d02385ecd

https://huntr.com/bounties/3d99aca5-b135-4833-b48b-7806bc4bf861