CVE-2026-86840

Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion

Published: Sep 8, 2026Updated: Sep 10, 2026 Sources: CVE List NVDCWE-639

9.1CRITICAL

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:NAvailability

None

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Weaknesses

CWE-639 CWE-862

Affected Products

Bitfrost.io

Bifrost

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Initial Access

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References

https://docs.bifrost.io/faq/what-are-vtokens

docs.bifrost.io

https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1

gist.github.com

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