Vulnerability in Sgbett Bsv-Ruby-Sdk
CVE-2026-40069
BSV Ruby SDK is the Ruby SDK for the BSV blockchain. From 0.1.0 to before 0.8.2, BSV::Network::ARC's failure detection only recognises REJECTED and DOUBLE_SPEND_ATTEMPTED. ARC responses with txStatus values of INVALID, MALFORMED, MINED_IN_STALE_BLOCK, or any ORPHAN-containing extraInfo / txStatus are silently treated as successful broadcasts. Applications that gate actions on broadcaster success are tricked into trusting transactions that were never accepted by the network. This vulnerability is fixed in 0.8.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Sgbett Bsv-Ruby-Sdk — versions >= 0.1.0, < 0.8.2
- Sgbett Bsv Ruby Sdk
Weakness classification (CWE)
References
- github.com/sgbett/bsv-ruby-sdk/security/advisories/GHSA-9hfr-gw99-8rhx (Patch, Vendor Advisory)
- github.com/sgbett/bsv-ruby-sdk/issues/305 (Issue Tracking)
- github.com/sgbett/bsv-ruby-sdk/pull/306 (Issue Tracking)
- github.com/sgbett/bsv-ruby-sdk/commit/4992e8a265fd914a7eeb0405c69d1ff0122a84cc (Patch)
- github.com/sgbett/bsv-ruby-sdk/releases/tag/v0.8.2 (Release Notes)
Frequently asked questions
- What is CVE-2026-40069?
- CVE-2026-40069 is a high-severity vulnerability in Sgbett Bsv-Ruby-Sdk, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.5/10. Published 2026-04-09.
- How severe is CVE-2026-40069?
- High severity. CVSS v3 base score is 7.5 out of 10.