CVE-2026-29013 libcoap Out-of-Bounds Read in OSCORE CBOR Unwrap Handling

libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where getbyteinc in src/oscore/oscorecbor.c relies solely on assert for bounds checking, which is removed in release builds compiled with NDEBUG. Attackers can send crafted CoAP requests with malformed...