PT-2026-30899 · Unknown · Marginal V1

Published 2026-04-07 · Updated 2026-05-14 · CVE-2026-4931

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Smart contract Marginal v1 (affected versions not specified)

Description The Smart contract Marginal v1 contains an unsafe downcast issue. This allows attackers to settle a large debt position for a negligible asset cost.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-681

Related Identifiers

CVE-2026-4931

Affected Products

Marginal V1

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-4931 · Security Note
• https://scs.owasp.org/SCWE/SCSVS-CODE/SCWE-041 · Note
• https://marginal.gitbook.io/docs · Note
• https://twitter.com/shibi_kishore/status/2054963111938167117 · Twitter Post
• https://twitter.com/0xsadikbaba/status/2054593815193780438 · Twitter Post
• https://github.com/MarginalProtocol · Note
• https://cvefeed.io/cwe/detail/cwe-681-incorrect-conversion-between-numeric-types · Note
• https://medium.com/@clarkcorrin/cve-2026-4931-how-spearbits-cantina-denied-a-critical-vulnerability-using-verifiably-false-0a27b92ac2db · Note
• https://twitter.com/hathornwarren51/status/2046241547356709176 · Twitter Post
• https://twitter.com/CVEnew/status/2041603203913916722 · Twitter Post
• https://t.me/cveNotify/158459 · Telegram Post