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

Quick assessment

Affected
Bitfrost.io Bifrost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Bifrost 中的 和 模块存在通道佣金归属方面的授权不当漏洞。签名账户在铸造代币时，可以传入任意已注册的 ，而系统未验证调用者是否有权限代表该通道进行代币铸造。这使得攻击者能够虚增某一通道的记录铸造量，从而在佣金结算时导致协议佣金被不成比例地分配给该通道。

AI Predicted 6.6 Difficulty: Moderate

Affected Version Matrix 1

VendorProduct Version RangeStatus
Bitfrost.io Bifrost ≤ 2022.02 affected
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I. Basic Information for CVE-2026-86840

Vulnerability Information
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Vulnerability Title
Bifrost Unauthorized Channel Commission Attribution Allows Commission Diversion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Bitfrost.io Bifrost 0 ~ 2022.02 -

II. Public POCs for CVE-2026-86840

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-86840

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Proof of Concept for CVE-2026-86840 (1)

Vendor Pages for CVE-2026-86840 (1)

IV. Related Vulnerabilities

Same product: Bifrost

V. Comments for CVE-2026-86840

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