CVE catalog

CVE-2026-40070

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 certifier's

[CVE catalog]

Severity
High · CVSS 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.14% · Oct 25, 2026

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 certifier's 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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Cpebsv-walletNot reported0.3.4fixed
Cpebsv_ruby_sdkNot reported0.8.2fixed
Cpebsv-walletNot reported0.3.4fixed
Cpebsv_ruby_sdkNot reported0.8.2fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Cpebsv-walletcpeNot reported0.3.4Not reportedNot reportedNot reported
Cpebsv_ruby_sdkcpeNot reported0.8.2Not reportedNot reportedNot reported
Cpebsv-walletcpeNot reported0.3.4Not reportedNVD-CVE-2026-40070Not reported
Cpebsv_ruby_sdkcpeNot reported0.8.2Not reportedNVD-CVE-2026-40070Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References

[FIRST EPSS] · [National Vulnerability Database (NVD)]