danny-avila/librechat is affected by an authorization bypass vulnerability due to improper access control checks. The "checkAccess" function in "api/server/middleware/roles/access.js" uses "permissions.some()" to validate permissions, which incorrectly grants access if only one of multiple required permissions is present. This allows users with the 'USER' role to create agents despite having "CREATE: false" permission, as the check for "['USE', 'CREATE']" passes with just "USE: true". This vulnerability affects other permission checks as well, such as "PROMPTS". The issue is present in all versions prior to the fix.