New Update: Cissy Houston Believes Bobbi Kristina’s Inheritance Could Be Detrimental--Details Inside!

Whitney Houston's mother Cissy is deathly afraid Bobbi  Kristina will die like just the singer -- in a haze of drugs and other  bad influences -- which is why she wants to withhold Bobbi's  multi-million-dollar inheritance, sources tell TMZ.

Sources close to  Cissy tell us, Cissy feels Bobbi is currently surrounded by numerous negative  influences -- including her boyfriend Nick Gordon and father Bobby Brown -- who will drain Bobbi's fortune given half the  chance.

We're told Cissy also feels 19-year-old Bobbi is still extremely  impressionable right now -- and if left unchecked with millions of dollars,  Bobbi could end up going off the rails ... eventually dying just like  Whitney.

According to sources, Cissy wants to wait until Bobbi has  matured significantly more before she gets her money ... an estate estimated at  $20 million ... though it's unclear how long she wants her to wait.

As  for allegations Cissy is trying to withhold Bobbi's fortune to hoard the money  for herself -- Cissy is telling friends that's total BS ... that's it's about  protecting her family.

As we reported, Cissy and Whitney's sister-in-law Pat Houston filed a request this week to modify Whitney's will  -- in order to change the distribution schedule of the estate--