Vulnerability Details CVE-2026-4931
Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 16.9%
CVSS Severity
CVSS v3 Score 8.6
References
- https://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types
- https://github.com/MarginalProtocol
- https://marginal.gitbook.io/docs
- https://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db
- https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041/