CVE-2026-106511

{"id": "CVE-2026-106511", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-106511", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-07T17:53:21.355591Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cret@cert.org", "affectedData": [{"vendor": "MultiversX Labs S.R.L.", "product": "multisig-improved", "versions": [{"status": "affected", "version": "GitHub commit 2e6dbea40f9b8ac165572a9efd4304804762a299"}]}]}], "published": "2026-10-06T19:18:13.500", "references": [{"url": "https://gist.github.com/x01griax/c03f4be898dc55ccf3bab667c83c7312", "source": "cret@cert.org"}, {"url": "https://github.com/multiversx/mx-multisig-and-modules", "source": "cret@cert.org"}, {"url": "https://gist.github.com/x01griax/c03f4be898dc55ccf3bab667c83c7312", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-306"}, {"lang": "en", "value": "CWE-862"}, {"lang": "en", "value": "CWE-863"}]}], "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."}], "lastModified": "2026-10-07T18:17:16.800", "sourceIdentifier": "cret@cert.org"}