CVE-2026-86840: CWE-862 Missing Authorization in Bitfrost.io Bifrost
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.
CVSS v3.1
Score 9.1critical
Affected software
Bitfrost.io
Bifrost
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in Bifrost's vtoken-minting and slpx pallets involves missing authorization checks when attributing channel commissions. A signed user can supply any registered channel_id during token minting without validation of their rights to mint for that channel. This flaw permits attackers to artificially inflate a channel's mint volume, skewing commission payments in favor of that channel during protocol commission settlement.
Potential Impact
An attacker can manipulate the commission attribution mechanism by inflating the mint volume of a channel they do not control. This results in disproportionate commission payments being allocated to that channel, potentially causing financial loss or unfair distribution of protocol rewards. The vulnerability has a CVSS score of 9.1, indicating high confidentiality and integrity impact but no availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to minting functions to trusted parties and monitor for unusual mint volume patterns if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- certcc
- Date Reserved
- 2026-09-08T14:43:37.022Z
- State
- PUBLISHED
Threat ID: 6aa02f59acd9273b49dfaf6a
Added to database: 09/08/2026, 15:52:57 UTC
Last enriched: 09/16/2026, 01:36:16 UTC
Last updated: 10/22/2026, 13:15:24 UTC
Views: 88
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