ignore bid from excited builders - #11239
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mehdi-aouadi merged 10 commits intoSep 14, 2026
Merged
mehdi-aouadi merged 10 commits into
mehdi-aouadi merged 10 commits into
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PR Description
Ignore bids from excited builders
Fixed Issue(s)
fixes #11220
Documentation
doc-change-requiredlabel to this PR if updates are required.Changelog
Note
Medium Risk
Changes EPBS execution payload bid gossip validation on the Gloas path; incorrect exit matching could wrongly ignore or accept bids, but scope is limited to one new rule with deferral behavior.
Overview
Adds a Gloas gossip validation rule on execution payload bids so a builder cannot keep bidding when the parent execution payload may exit them.
When a bid’s
parent_block_hashmatches the head’s latest execution payload hash, the validator loads that parent envelope (when envelopes apply at the parent slot) and IGNOREs the bid if itsbuilder_exitsinclude a request whose pubkey and source address both match the bidding builder. If the parent envelope is not imported yet, the bid is saved for future processing instead; the check is skipped when the parent predates envelope availability or when the bid does not extend the latest payload.Tests cover matching exits, partial field matches, non-latest parents, deferred validation, and pre-Gloas parents.
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