CVE-2026-4931 json
CVE-2026-4931
published 2026-04-07 7 mo ago modified 2026-10-26 13 d ago also EUVD-2026-19742
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N |
| NVD | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N |
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N |
Affected products
- Marginal Marginal Smart Contract
Classification
- Weakness
-
- CWE-681 Incorrect Conversion between Numeric Types
References
-
cvefeed.io
/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types
not-applicable
-
scs.owasp.org
/SCWE/SCSVS-CODE/SCWE-041/
not-applicable
-
marginal.gitbook.io
/docs
product
-
github.com
/MarginalProtocol
product
-
medium.com
/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b
mitigation, press/media-coverage, third-party-advisory
Sources
- CVE List CVE-2026-4931
- NVD CVE-2026-4931
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.