The official event report on the Polygon status page indicates that Polygon is currently facing a temporary consensus finality delay due to a vulnerability affecting Bor and Erigon nodes.
The issue emerged on Wednesday morning, leading to interruptions in some RPC services and preventing access to certain network applications. Although the Polygon blockchain remains online and continues to generate blocks, some RPC service providers and validators had to revert to the last finalized block and resynchronize.
The Polygon team confirmed that nodes with specific configurations were affected by the vulnerability. After restarting the affected nodes, issues for some participants have been resolved. Polygon stated, "We found that restarting the nodes has resolved the issues for many validators and RPC service providers."
Engineers are collaborating with infrastructure service providers to expedite debugging efforts, aiming to restore full functionality as soon as possible. The team clearly stated that this incident did not affect the core operation of the main chain and assured users that they would recover quickly.
Cointelegraph reached out to Polygon Labs for comments but had not received a response by the time of publication.
As of the time of publication, the Polygon block explorer and analytics platform Polygonscan showed that the most recent block on the network was generated over five hours ago. However, the company directed users to another link for block updates in their latest update.
A representative from Polygon told Cointelegraph, "We are working with them to switch to unaffected nodes." The representative indicated that Polygonscan's nodes were stuck on an anomalous milestone generated by Heimdall (the Polygon consensus engine).
At 08:52 UTC, the team emphasized that the blockchain is still running, and blocks are continuously being generated. Polygon wrote, "Checkpoint finality is operating as expected within 15 minutes."
The link shared by Polygon shows that blocks are being generated in real-time.
The Polygon team also posted a message on X stating that while they are still actively investigating the node issues causing the block finality delay, they have found a solution.
"We have identified a fix and will push it to all validators and service providers soon," the team wrote.
A Polygon representative also told Cointelegraph that current analysis shows that the finality tool in Heimdall typically generates a milestone every few seconds, but no new milestones have been generated at this time.
The representative stated, "This means that while blocks are still being generated and written to the blockchain, finality will only be achieved after a checkpoint is published on Ethereum (ETH) every 20 minutes."
Polygon stated that they are working with major infrastructure service providers to minimize the impact of this incident.
Bor and Erigon are two core software programs that support the operation of the Polygon network. Bor is the main program responsible for generating and organizing new transaction blocks in the network.
Erigon provides efficient access, storage, and retrieval tools for blockchain data to blockchain infrastructure service providers. It is designed with a focus on speed, stability, and low storage consumption, making it suitable for enterprises operating block explorers, analytics platforms, or decentralized application (DApp) backends.
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Original: “Despite Consensus Vulnerability Disruption, Polygon Claims Block Operations Are Normal”
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