{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86840","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","state":"PUBLISHED","assignerShortName":"certcc","dateReserved":"2026-09-08T14:43:37.022Z","datePublished":"2026-09-08T15:29:48.572Z","dateUpdated":"2026-09-10T18:27:49.910Z"},"containers":{"cna":{"title":"Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion","descriptions":[{"lang":"en","value":"The `vtoken-minting` and `slpx` pallets in Bifrost contain an improper authorization vulnerability in channel commission attribution. A signed account can supply an arbitrary registered `channel_id` when minting tokens without verifying that the caller is authorized to mint on behalf of that channel. This allows an attacker to inflate a channel's recorded mint volume and cause protocol commission payments to be disproportionately distributed to that channel during commission settlement."}],"source":{"discovery":"UNKNOWN"},"affected":[{"vendor":"Bitfrost.io","product":"Bifrost","versions":[{"status":"affected","version":"0","lessThanOrEqual":"2022.02","versionType":"custom"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-862 Missing Authorization"}]},{"descriptions":[{"lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"references":[{"url":"https://docs.bifrost.io/faq/what-are-vtokens"},{"url":"https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1"}],"x_generator":{"engine":"VINCE 3.0.45","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-86840"},"providerMetadata":{"orgId":"37e5125f-f79b-445b-8fad-9564f167944b","shortName":"certcc","dateUpdated":"2026-09-08T15:29:48.572Z"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization"},{"type":"CWE","cweId":"CWE-639","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key"}]}],"references":[{"url":"https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1","tags":["exploit"]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.1,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-10T18:26:55.960946Z","id":"CVE-2026-86840","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-10T18:27:49.910Z"}}]}}