Chainlink: How a ‘price discrepancy’ resulted in millions lost from DeFi protocols

Terra’s complete worth locked suffered a significant fall, shedding as a lot as $14 billion, amid the de-pegging fiasco leading to lowered DeFi investor curiosity and a bearish market. The protocol lost around 78% in TVL for the reason that first quarter of 2022. De-pegging of UST, the protocol’s stablecoins made the state of affairs worse.
Following this, totally different different platforms, exchanges corresponding to Binance suspended LUNA’s interplay over excessive market situations.
One suspension of LUNA led to this…
Chainlink halted the value feed because of excessive market situations with the LUNA token. As per the official announcement, the unprecedented volatility throughout the cryptocurrency markets triggered the minimal worth circuit breaker for the LUNA/USD value feeds.
Official workforce assertion on the Chainlink LUNA/USD Value Feeds state of affairs pic.twitter.com/EjA5naYalu
— ChainLinkGod.eth (@ChainLinkGod) May 13, 2022
However this wasn’t it. This improvement affected two decentralized finance (DeFi) protocols because of a value discrepancy. DeFi lending platform, Venus Protocol explained that when Chainlink paused the LUNA value feed, the LUNA value on their platform remained at $0.107 whereas the market value stood at $0.01.
“As a way to de-risk this case, the protocol paused utilizing PauseGuardian by way of multisig,” it stated.
Expensive Venus Neighborhood,
Because of the unanticipated suspension of Chainlink’s LUNA value feed, Venus has taken a precautionary measure to guard our customers and is presently paused.
A VIP to unpause Venus following the disabling of LUNA has been launched: https://t.co/RSnGmshIeG
— Venus Protocol (@VenusProtocol) May 13, 2022
The protocol received its value feeds from Chainlink oracles- That is the place the issues started. As per additional investigation, the workforce found two massive deposits of LUNA on the errant value, used to borrow property on the platform. The weblog put up added:
“Upon this desyncing occasion, 2 accounts had suspiciously deposited a sum of 230,000,000 LUNA valued at over $24,000,000. Property have been borrowed totaling round $13,500,000.”
Total, the platform misplaced $11.2 million because of Chainlink’s suspension of LUNA value updates, and the LUNA lending market stays suspended. Regardless that, the platform launched a proposal to renew the system, the injury appears to be finished.
As per DeFiLama, XVS’ TVL had dumped 28% over the previous 24 hours as a result of incident.

Supply: DeFiLama
As well as, Blizz Finance, a lending protocol on Avalanche suffered the same destiny. A number of attackers deposited hundreds of thousands of LUNA, price $0.10 in response to the Chainlink oracle to borrow all of the collateral. In consequence, Blizz Finance talked about that its protocol drained earlier than the workforce may act to offset the state of affairs.
We’ve constructed on the AVAX ecosystem in good religion with the expectation that @chainlink oracles would behave as anticipated. Sorry to these affected.
— Blizz Finance (@BlizzFinance) May 13, 2022
The blame recreation
Chainlink and its ecosystem confronted criticism on the social media platform following the aforementioned fiascos. Some imagine that the losses occurred as a result of protocols’ negligence. Nevertheless, not everybody rode this bandwagon. Twitter consumer TheSoftwareJedi pointed out that Chainlink’s feeds had the instruments essential to keep away from the issue.
Feeds have a datetime related to the value information. Try to be utilizing it, no excuse to not. That is merely negligent – and worse blaming Chainlink. Their docs name this out. See 4 belongings you did not do: https://t.co/NdNHc9nwoP
— Dana 🦀⚓ Glass Farm◎◎◎r (@TheSoftwareJedi) May 13, 2022
Nonetheless, regardless of elevating fingers, the crypto group as a complete had suffered.