Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion

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Summary

CVECVE-2026-86840
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-08 16:18:37 UTC
Updated2026-09-10 19:17:36 UTC
DescriptionThe `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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.002410000 probability, percentile 0.152540000 (date 2026-09-11)

Problem Types: CWE-639 | CWE-862 | CWE-862 Missing Authorization | CWE-639 Authorization Bypass Through User-Controlled Key | CWE-862 CWE-862 Missing Authorization | CWE-639 CWE-639 Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Bitfrost.io Bifrost affected 2022.02 custom Not specified

References

ReferenceSourceLinkTags
docs.bifrost.io/faq/what-are-vtokens [email protected] docs.bifrost.io
gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1 134c704f-9b21-4f2e-91b3-4a467353bcc0 gist.github.com
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