← Vulnerability feed

Vulnerability record · CVE-2026-40069 · published 9 April 2026

CVE-2026-40069: Sgbett bsv ruby sdk vulnerability

SSgbett · Bsv Ruby Sdk

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.

7.5 CVSS 3.1 High EPSS 0.47% · top 62.0% CWE-754 · CWE-754
7.5CVSS 3.1 base score
0.47%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/sgbett/bsv-ruby-sdk/commit/4992e8a265fd914a7eeb0405c69d1ff0122a84cc Patch
https://github.com/sgbett/bsv-ruby-sdk/issues/305 Issue Tracking
https://github.com/sgbett/bsv-ruby-sdk/pull/306 Issue Tracking
https://github.com/sgbett/bsv-ruby-sdk/releases/tag/v0.8.2 Release Notes
https://github.com/sgbett/bsv-ruby-sdk/security/advisories/GHSA-9hfr-gw99-8rhx PatchVendor Advisory

Track CVE-2026-40069 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.1CVE-2026-40070Sgbett bsv-wallet improper verification of cryptographic signature vulnerabilityBSV 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 r…EPSS 0.20%9.8CVE-2025-39682Linux kernel TLS zero-length record handling flaw on rx_listThe Linux kernel TLS receive path mishandles zero-length records that arrive from the rx_list, breaking the assumption that a record type change cann…KEVEPSS 2.9%analysed8.7CVE-2024-3393PAN-OS DNS Security packet causes firewall reboot and maintenance modeA denial of service flaw in the DNS Security feature of Palo Alto Networks PAN-OS lets an unauthenticated attacker send a crafted packet through the …KEVEPSS 28%analysed8.8CVE-2023-41993Apple WebKit improper check allows arbitrary code executionCVE-2023-41993 is a WebKit flaw where processing web content can lead to arbitrary code execution, addressed with improved checks. Apple states it is…KEVEPSS 24%analysed7.8CVE-2023-41992Apple kernel privilege escalation via insufficient checksApple kernel code did not perform adequate checks, allowing a local attacker to elevate privileges. Apple states it is aware of a report that this is…KEVEPSS 9.5%analysed7.8CVE-2021-3560polkit D-Bus credential check bypass allows local root escalationpolkit can be tricked into bypassing credential checks for D-Bus requests, letting an unprivileged local user elevate to root. Because polkit is a co…KEVEPSS 24%analysed

Source: NIST National Vulnerability Database (record CVE-2026-40069), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.