ChainBleedv0.1 · open intel
← back to feed·2022-08-14 · 3y ago
Incident · SLOWMIST

Acala

On-chain setup error
Estimated loss
$52.00M
VERDICT —UNRATED
Verdict pending. Auto-ingested incidents are reviewed before a public verdict is rendered.
▰ METHOD
Undisclosed
Root cause

Root-cause analysis not yet published. The incident description below contains all currently available signal — review the attack transaction directly for definitive forensics.

Forensic narrative

The Polkadot ecological project Acala caused an additional issuance of aUSD due to an error on the chain, allowing attackers to mint aUSD. The vulnerability caused aUSD to lose its peg to the US dollar, initially falling to $0.60 and hovering around $0.90. Acala suspended the protocol shortly after the attack and disabled the transfer of the stolen aUSD and the attackers exchanging Acala tokens for some of the aUSD. Attack method (per SlowMist): On-chain setup error. Reported loss: $ 52,000,000.

Primary source
https://medium.com/acalanetwork/updates-on-the-ausd-incident-22-august-2022-997efec98b35
Sourced from
slowmist
Technical record
chain
protocol
Acala
bug_class
unknown
date_occurred
2022-08-14
loss_usd
$52,000,000
source_id
sm:acala::2022-08-14
Related — same bug class
2026-05-16
1mo ago
ETH
Adshares
Bridge-Minter Fake-Mint Exploit (wADS)
bridge
$628.0K
AMBIGUOUS
2026-05-15
1mo ago
MULTI
THORChain
Cross-Chain Router Exploit (multi-chain drain)
bridge
$10.70M
AMBIGUOUS
2026-05-13
1mo ago
BSC
Mail Token
BSC token contract exploit (vector undisclosed)
accounting
$54.6K
UNRATED
2026-05-13
1mo ago
ARB
ShapeShift FOX Colony (Colony Network)
executeMetaTransaction → resolver-repoint via setTarget → delegatecall drain
access-control
$132.7K
AUDIT-CATCHABLE
2026-05-13
1mo ago
ETH
Transit Finance
Contract Vulnerability
logic
$1.88M
UNRATED
2026-05-13
1mo ago
ETH
TAC Cross-Chain Layer (TON Side)
Contract Vulnerability
logic
$2.80M
UNRATED
ChainBleed — live web3 threat intelligence