CVE-2026-106511
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
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.
Risk Assessment
An attacker with the Proposer role can completely drain the multisig contract, resulting in direct loss of all EGLD/ESDT funds.
Recommendation
Update the multisig implementation to a version containing the fix or pause use of affected contracts until the patch is applied.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS