by Kastro
Paper/Archive/CVE-2026-86840

CVE-2026-86840

Bitfrost.io Bifrost — Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion

EPSS 0.4%public exploitCVSS 9.1
critical.is priorityof 100
45
CVSS 9.1 (ADP)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 36.4.364 × 207.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
Bifrost≤ 2022.02–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refdocs.bifrost.io/faq/what-are-vtokensexploitgist.github.com/prasanna8585/ffd112b1a125ca4c5533fdce45ef57c1