I’m behind in checking XDA. This was revealed on December 7 by cazar.
Nook GlowLight Plus rooting script
It’s pretty simple rooting script using local exploit found [on a Chinese site].
Instructions:
1. Enable USB debugging in Developer options
2. Connect USB cable and make sure your nook is showing up in ‘adb devices’
3. Extract rootGLP.zip and run rootnook.cmd (or rootnook.sh on linux)
The XDA post has the link for the file.
And now is the time to pounce on it …