CVE-2026-40070

Publication date

2026-04-09 17:26:51

Family

GitHub_M

State

PUBLISHED

Description

BSV Ruby SDK is the Ruby SDK for the BSV blockchain. From 0.3.1 to before 0.8.2, BSV::Wallet::WalletClient#acquire_certificate persists certificate records to storage without verifying the certifiers signature over the certificate contents. In acquisition_protocol: direct, the caller supplies all certificate fields (including signature:) and the record is written to storage verbatim. In acquisition_protocol: issuance, the client POSTs to a certifier URL and writes whatever signature the response body contains, also without verification. An attacker who can reach either API (or who controls a certifier endpoint targeted by the issuance path) can forge identity certificates that subsequently appear authentic to list_certificates and prove_certificate.