A shift-reduce parser suffers from

Shift-reduce parsers are bottom-up parsing methods that utilize a stack to process input symbols.

These parsers can encounter ambiguity where they must decide between shifting the next symbol or reducing a handle, known as shift-reduce conflict.

Furthermore, ambiguity can arise when multiple reduction rules apply to the same stack content, causing reduce-reduce conflict.

Consequently, both shift-reduce and reduce-reduce conflicts are potential issues in shift-reduce parsing strategies.