CVE-2026-4931HIGH 8.6EPSS p16.9%

CVE-2026-4931CVE-2026-4931

Description

Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.

Scoring

CVSS 3.18.6 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS0.26% probability of exploitation · percentile 16.9% · 2026-06-19T12:03:05Z
Published2026-04-07
Last modified2026-05-22

Underlying weaknesses· 1

CWE-681

References

  1. https://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types
  2. https://github.com/MarginalProtocol
  3. https://marginal.gitbook.io/docs
  4. https://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db
  5. https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041/

1

TypeTargetConfidenceTier
WeaknessIncorrect Conversion between Numeric Typescwe-6810%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.