CVE-2026-4931

EUVD-2026-19742
Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.6 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
Affected Products (NVD)
VendorProductVersion
marginalv1-core
𝑥
≤ 1.0.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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/