FKIE_CVE-2026-4931

Vulnerability from fkie_nvd - Published: 2026-04-07 16:16 - Updated: 2026-04-08 21:27
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Summary
Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.
References
cret@cert.orghttps://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types
cret@cert.orghttps://github.com/MarginalProtocol
cret@cert.orghttps://marginal.gitbook.io/docs
cret@cert.orghttps://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db
cret@cert.orghttps://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041/
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost."
    }
  ],
  "id": "CVE-2026-4931",
  "lastModified": "2026-04-08T21:27:00.663",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.0,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-07T16:16:30.410",
  "references": [
    {
      "source": "cret@cert.org",
      "url": "https://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types"
    },
    {
      "source": "cret@cert.org",
      "url": "https://github.com/MarginalProtocol"
    },
    {
      "source": "cret@cert.org",
      "url": "https://marginal.gitbook.io/docs"
    },
    {
      "source": "cret@cert.org",
      "url": "https://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db"
    },
    {
      "source": "cret@cert.org",
      "url": "https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041/"
    }
  ],
  "sourceIdentifier": "cret@cert.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-681"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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Detection rules are retrieved from Rulezet.