Vulnerability Description
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."
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bitcoin | Bitcoin Core | >= 0.9, <= 26.0 |
| Bitcoinknots | Bitcoin Knots | >= 0.9, < 25.1 |
References
- https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresThird Party Advisory
- https://github.com/bitcoin/bitcoin/blob/65c05db660b2ca1d0076b0d8573a6760b3228068
- https://github.com/bitcoin/bitcoin/pull/28408#issuecomment-1844981799Issue Tracking
- https://github.com/bitcoin/bitcoin/tagsProduct
- https://github.com/bitcoinknots/bitcoin/blob/aed49ce8989334c364a219a6eb016a3897dRelease Notes
- https://twitter.com/LukeDashjr/status/1732204937466032285Issue TrackingThird Party Advisory
- https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_ExposuresThird Party Advisory
- https://github.com/bitcoin/bitcoin/blob/65c05db660b2ca1d0076b0d8573a6760b3228068
- https://github.com/bitcoin/bitcoin/pull/28408#issuecomment-1844981799Issue Tracking
- https://github.com/bitcoin/bitcoin/tagsProduct
- https://github.com/bitcoinknots/bitcoin/blob/aed49ce8989334c364a219a6eb016a3897dRelease Notes
- https://twitter.com/LukeDashjr/status/1732204937466032285Issue TrackingThird Party Advisory
FAQ
What is CVE-2023-50428?
CVE-2023-50428 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 I...
How severe is CVE-2023-50428?
CVE-2023-50428 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-50428?
Check the references section above for vendor advisories and patch information. Affected products include: Bitcoin Bitcoin Core, Bitcoinknots Bitcoin Knots.