{"id":"CVE-2026-106511","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-106511","generatedAt":"2026-10-28T08:10:59.530Z","title":"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…","description":"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.","published":"2026-10-06T19:18:14.000Z","lastModified":"2026-10-07T18:17:17.000Z","status":"Deferred","sourceIdentifier":"cret@cert.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-306","CWE-862","CWE-863"],"affected":[],"epss":{"score":0.00468,"percentile":0.40309,"date":"2026-10-27","history":[{"date":"2026-10-07","score":0.00148,"percentile":0.03487}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"scored","label":"Newly scored","at":"2026-10-07T20:15:13.000Z","detail":{"from":null,"score":"9.8","severity":"CRITICAL","fromSeverity":null},"summary":"Now scored CVSS 9.8 CRITICAL."},{"kind":"new","label":"New CVE","at":"2026-10-06T19:18:14.000Z","detail":{"score":null,"severity":null,"publishedAt":"2026-10-06T19:18:13.500Z"},"summary":"New CVE, critical severity (CVSS 9.8)."}],"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"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-106511","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}