GitHub Advisoryadvisory · Go
GHSA-56j4-446m-qrf6 Babylon vulnerable to chain half when transaction has fees different than `ubbn`
HIGH
Official page ↗
- Ecosystem
- Go
- Packages
- github.com/babylonlabs-io/babylon/v2, github.com/babylonlabs-io/babylon
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weaknesses
- CWE-755
- Reviewed
- 2025-06-30
Affected packages
• Go github.com/babylonlabs-io/babylon/v2: < 2.2.0 → fixed in 2.2.0
• Go github.com/babylonlabs-io/babylon: <= 1.1.0 (no fix yet)
Description
Summary
Sending transactions with fees different than native Babylon genesis denom (`ubbn`) leads to chain halt.
Impact
Denial of Service - Due to panic in the `x/distribution` module `BeginBlocker` triggered by a error when sending fees from `feeCollector` to `x/distribution` module - https://github.com/cosmos/cosmos-sdk/blob/main/x/distribution/keeper/allocation.go#L28 Babylon Genesis will halt
Related
Weakness · CWE (1)
- CWE-755 Improper Handling of Exceptional Conditions weakness
References
- https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-56j4-446m-qrf6 web
- https://github.com/babylonlabs-io/babylon/commit/fe67aebd5216e7d3afa1d7dee2a3f82e548556f3 web
- https://github.com/babylonlabs-io/babylon package
- https://github.com/cosmos/cosmos-sdk/blob/main/x/distribution/keeper/allocation.go#L28 web