CVE-2026-86840: Bitfrost.io Bifrost

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Bitfrost.io Bifrost: up to and including 2022.02

Published 2026-09-08. Last modified 2026-09-10.