What type of glue to use?

[JacoM]

For my self inflating mattress (Make: First Accent)
After about 27years, the nozzle is now leaking.
It is actually quite"loose - would need to remove the molded nozzle pice completely and glue together from the start
What glue would be perfect for this?

 

[Jakes Louw]

 

[JacoM]

 

[EssBee]

 

[ClimbingTurtle]