---
id: CVE-2026-86840
title: >-
  The `vtoken-minting` and `slpx` pallets in Bifrost contain an improper
  authorization vulnerability in channel commission attribution
summary: >-
  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 …
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-639
  - CWE-862
vendor: Bitfrost.io
product: Bifrost
affected:
  - Bifrost <= 2022.02
published: '2026-09-08'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T19:17:36.980'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86840'
references:
  - url: 'https://docs.bifrost.io/faq/what-are-vtokens'
    label: cret@cert.org
  - url: 'https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1'
    label: cret@cert.org
  - url: 'https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-10T18:26:55.960946Z'
epss: 0.00241
epssPercentile: 0.15552
ingestedAt: '2026-09-08T16:34:19.229Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.