GitHub Advisoryadvisory · Go
GHSA-2fcv-qww3-9v6h Babylon's malformed vote extensions are not rejected
HIGH
Official page ↗
- Ecosystem
- Go
- Packages
- github.com/babylonlabs-io/babylon/v4
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
- Weaknesses
- CWE-770
- Reviewed
- 2025-11-24
Affected packages
• Go github.com/babylonlabs-io/babylon/v4: < 4.1.0 → fixed in 4.1.0
Description
Summary
Adversarial validators can send large vote extensions by using non-existing protobuf tags. This will result in the rejection of the subsequent block proposal. Eventually, all block proposals will be rejected by all validators.
Impact
A small group of adversarial validators can cause a chain halt.
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://github.com/babylonlabs-io/babylon/security/advisories/GHSA-2fcv-qww3-9v6h web
- https://github.com/babylonlabs-io/babylon/pull/1873/commits/86f38abd2dca5a656195a9954bb569a08d662e2b web
- https://github.com/babylonlabs-io/babylon package
- https://github.com/babylonlabs-io/babylon/releases/tag/v4.1.0 web