CVE-2026-29795 stellar-xdr: `StringM::from_str` bypasses max length validation

stellar-xdr is a library and CLI containing types and functionality for working with Stellar XDR. Prior to version 25.0.1, StringM::fromstr does not validate that the input length is within the declared maximum MAX. Calling StringM::::fromstrs where s is longer than N bytes succeeds and returns a...