An issue was discovered in cpp-peglib before v0.1.13. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.
CWE-125 - Out-of-Bounds Read
Out-of-bounds read is a vulnerability that allows access to memory beyond the authorized accessible location. Such a vulnerability compromises the confidentiality of the trusted environment in the application and enables an attacker to launch further attacks by leveraging the exposed information.