What’s Vulnerable › Vulnerabilities

CVE-2026-86840: Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-08 · updated 2026-09-10
• Weakness: CWE-639

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.

Affected products

• Bitfrost.io Bifrost: through 2022.02

References

• https://docs.bifrost.io/faq/what-are-vtokens
• https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1
• https://gist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1

Get alerted when CVE-2026-86840 or the next vulnerability affects your stack