RubyGems/bsv-sdk CVE-2026-40070: high 8.1, EPSS 0.14%

bsv-sdk and bsv-wallet persist unverified certifier signatures in acquire_certificate (direct and issuance paths)

Action: Upgrade bsv-sdk to 0.8.2 or later.

bundle update bsv-sdk

Affected

Fixed versions

Sources

• osv: GHSA-hc36-c89j-5f4j
• https://github.com/sgbett/bsv-ruby-sdk/security/advisories/GHSA-hc36-c89j-5f4j
• https://nvd.nist.gov/vuln/detail/CVE-2026-40070
• https://github.com/sgbett/bsv-ruby-sdk/issues/305
• https://github.com/sgbett/bsv-ruby-sdk/pull/306
• https://github.com/sgbett/bsv-ruby-sdk/commit/4992e8a265fd914a7eeb0405c69d1ff0122a84cc
• https://brc.dev/52
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/bsv-sdk/CVE-2026-40070.yml
• https://github.com/rubysec/ruby-advisory-db/blob/master/gems/bsv-wallet/CVE-2026-40070.yml
• https://github.com/sgbett/bsv-ruby-sdk

CVE-2026-40070 · published 2026-04-09T20:28:10Z · modified 2026-05-13T16:38:48.044722Z · JSON