CVE-2026-40070

Katalog CVE

CVSS 8.1 · High EPSS 0,20%

Kerentanan Improper Verification of Cryptographic Signature pada sgbett bsv-wallet, sgbett bsv ruby sdk. Skor CVSS 3.1 8.1 (High) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

9 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.1 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/sgbett/bsv-ruby-sdk/security/advisories/GHSA-hc36-c89j-5f4j exploit · patch · advisory vendor
• https://brc.dev/52 not applicable
• https://github.com/sgbett/bsv-ruby-sdk/commit/4992e8a265fd914a7eeb0405c69d1ff0122a84cc release notes
• https://github.com/sgbett/bsv-ruby-sdk/issues/305 issue tracking
• https://github.com/sgbett/bsv-ruby-sdk/pull/306 issue tracking