CVE-2026-40069bsv-sdk ARC broadcaster treats INVALID/MALFORMED/ORPHAN responses as successful broadcasts
- 7.5HighCVSS base score
- 0.28%Exploitation in 30 daysEPSS · top 80% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By GitHub_M
Published
- 4 days later
· 4 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.28% · top 80% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected >= 0.1.0, < 0.8.2
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- RubyGemsbsv-sdkGHSA-9hfr-gw99-8rhx (opens in a new tab)
References
References5
- https://github.com/sgbett/bsv-ruby-sdk/security/advisories/GHSA-9hfr-gw99-8rhx (opens in a new tab)x_refsource_CONFIRM
- https://github.com/sgbett/bsv-ruby-sdk/issues/305 (opens in a new tab)x_refsource_MISC
- https://github.com/sgbett/bsv-ruby-sdk/pull/306 (opens in a new tab)x_refsource_MISC
- https://github.com/sgbett/bsv-ruby-sdk/commit/4992e8a265fd914a7eeb0405c69d1ff0122a84cc (opens in a new tab)x_refsource_MISC
- https://github.com/sgbett/bsv-ruby-sdk/releases/tag/v0.8.2 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-20994 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-9hfr-gw99-8rhx (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-40069)Record last updated .