In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, datacarrier…
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In Bitcoin Core through 26.0 and Bitcoin Knots before 25.1.knots20231115, datacarrier size limits can be bypassed by obfuscating data as code (e.g., with OP_FALSE OP_IF), as exploited in the wild by Inscriptions in 2022 and 2023. NOTE: although this is a vulnerability from the perspective of the Bitcoin Knots project, some others consider it "not a bug."
Why it matters now
EPSS 0.00779 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* | 0.9 – 26.0 | Vulnerable | Bitcoin |
| cpe:2.3:a:bitcoinknots:bitcoin_knots:*:*:*:*:*:*:*:* | 0.9 to before 25.1 | Vulnerable | Bitcoinknots |
- cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:* Versions 0.9 – 26.0 Vulnerable ·Bitcoin
- cpe:2.3:a:bitcoinknots:bitcoin_knots:*:*:*:*:*:*:*:* Versions 0.9 to before 25.1 Vulnerable ·Bitcoinknots
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-50428
- 2026-10-03 Alias added: GHSA-9x7v-86jh-jjch
References
Advisory 2
Other 4
- https://github.com/bitcoin/bitcoin/pull/28408#issuecomment-1844981799
- https://github.com/bitcoinknots/bitcoin/blob/aed49ce8989334c364a219a6eb016a3897d4e3d7/doc/release-notes.md
- https://github.com/bitcoin/bitcoin/tags
- https://github.com/bitcoin/bitcoin/blob/65c05db660b2ca1d0076b0d8573a6760b3228068/src/kernel/mempool_options.h#L46-L53
Sources
- CVE-2023-50428 · CVE Program
- CVE-2023-50428 · NVD
- FIRST EPSS
- GHSA-9x7v-86jh-jjch · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences