{"id":"CVE-2026-4931","aliases":["EUVD-2026-19742","GHSA-x4xq-7w28-q486"],"status":"published","title":"CVE-2026-4931","description":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00267,"percentile":0.18993,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-681"],"published":"2026-04-07T15:22:36Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"marginal","product":"marginal smart contract"},{"vendor":"marginal","product":"v1-core"}],"references":[{"url":"https://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types","tags":["Not Applicable"]},{"url":"https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041/","tags":["Not Applicable"]},{"url":"https://marginal.gitbook.io/docs","tags":["Product"]},{"url":"https://github.com/MarginalProtocol","tags":["Product"]},{"url":"https://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db","tags":["Mitigation","Press/Media Coverage","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4931"},{"url":"https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041"},{"url":"https://github.com/advisories/GHSA-x4xq-7w28-q486"}],"sources":{"cve":[{"id":"CVE-2026-4931","title":"CVE-2026-4931","description":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.","status":"published","published":"2026-04-07T15:22:36.7Z","modified":"2026-04-08T14:45:03.884Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T14:19:58.944663Z"}],"euvd":[{"id":"EUVD-2026-19742","description":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.","status":"published","published":"2026-04-07T15:22:36Z","modified":"2026-04-08T14:45:03Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:12.037386Z"}],"ghsa":[{"id":"GHSA-x4xq-7w28-q486","title":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt...","description":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.","status":"published","published":"2026-04-07T18:31:37Z","modified":"2026-04-08T15:32:45Z","cvss":[{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T15:07:12.242992Z"}],"nvd":[{"id":"CVE-2026-4931","description":"Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.","status":"published","published":"2026-04-07T16:16:30.41Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-681"],"updated_at":"2026-11-02T14:12:13.535987Z"}]}}