PT-2026-107117 · Multiversx Labs S.R.L. · Multisig-Improved
CVE-2026-106511
·
Published
2026-10-06
·
Updated
2026-10-06
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
MultiversX's multisig-improved (repository: mx-multisig-and-modules) reference implementation of their on-chain multisig smart contract system contains a vulnerability where a missing independent authorization check allows any account with the Proposer role to perform explicitly barred actions. This vulnerability allows the Proposer role to move funds alone, draining 100% of a contract's EGLD/ESDT balance in two transactions with zero signatures.
Exploit
Fix
Incorrect Authorization
Missing Authentication
Missing Authorization
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Related Identifiers
Affected Products
Multisig-Improved