Developers have identified a software vulnerability in the BLS voting extension mechanism of the Bitcoin staking protocol Babylon. This flaw allows malicious validators to omit the block hash field when submitting voting extensions, potentially causing other validators to crash at network epoch boundaries. This could slow down block production during critical consensus checks. Although there is no evidence of the vulnerability being exploited, developers warn it could be abused if not addressed. Babylon has yet to publicly respond with a fix.