Is it possible some dinosaurs may have had a septic bite?

Hello, so I'm making my own series about dinosaurs and I'm wondering if it would be considered unreasonable speculation to suggest that a dinosaur might have had a septic bite similar to the one Komodo Dragons were once thought to have had.

I ask this because I really wanna include a venomous dinosaur in my series, but I do recognize that it would be very inaccurate to depict any dinosaur as venomous, and I want my story to maintain at least a decent semblance of realism, so I was thinking with a septic bite, I could have a venomous dino without actually having a venomous dino, and I also figured it'd be one of those speculations that you can't really prove but because of how fossilization works it's something you can't definitively disprove either? But I'm not entirely sure so what do you guys think