{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-106511", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-10-06T18:47:59.209Z", "datePublished": "2026-10-06T18:52:33.825Z", "dateUpdated": "2026-10-06T18:52:33.825Z"}, "containers": {"cna": {"title": "CVE-2026-106511", "descriptions": [{"lang": "en", "value": "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."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "MultiversX Labs S.R.L.", "product": "multisig-improved", "versions": [{"status": "affected", "version": "GitHub commit 2e6dbea40f9b8ac165572a9efd4304804762a299"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-862 Missing Authorization"}]}, {"descriptions": [{"lang": "en", "description": "CWE-863 Incorrect Authorization"}]}, {"descriptions": [{"lang": "en", "description": "CWE-306 Missing Authentication for Critical Function"}]}], "references": [{"url": "https://github.com/multiversx/mx-multisig-and-modules"}], "x_generator": {"engine": "VINCE 3.0.49", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-106511"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-10-06T18:52:33.825Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "multisig-improved", "vendor": "MultiversX Labs S.R.L.", "versions": [{"status": "affected", "version": "GitHub commit 2e6dbea40f9b8ac165572a9efd4304804762a299"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-106511", "lastModified": "2026-10-06T20:06:12.743", "metrics": {}, "published": "2026-10-06T19:18:13.500", "references": [{"source": "cret@cert.org", "url": "https://github.com/multiversx/mx-multisig-and-modules"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred"}

{}

{"created": "2026-10-06T22:30:07.684146+00:00", "title": "Missing Authorization Check Enables Proposer Role to Drain Multisig Contract Funds", "updated": "2026-10-06T22:30:07.684152+00:00", "vendors": [], "weaknesses": ["CWE-285"]}