Being honest, paths this long are quite rare. They would probably either have to be created by accident, or with malicious intent.. An Edge Case But.. This is why in Cloud Foundry’s eyes, the bug was

*big.Int // CRTValues is used for the 3rd and subsequent primes. Due to a // historical accident, the CRT for the first two primes is handled // differently in PKCS#1 and interoperability is 43 // CRTValues is used for the 3rd and subsequent primes. Due to a 44 // historical accident, the CRT for the first two primes is handled 45 // differently in PKCS#1 and interoperability