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.
A small group of adversarial validators can cause a chain halt.
{
"nvd_published_at": null,
"github_reviewed": true,
"cwe_ids": [
"CWE-770"
],
"severity": "HIGH",
"github_reviewed_at": "2025-11-24T23:32:11Z"
}