MANTRA (2026) — Crypto Hack
ConfirmedMANTRA was drained of ~$3.6M (720.9M MANTRA) via the Cosmos EVM underflow bug, with funds taken from the burn address and legacy genesis multisig. The chain was halted for ~30 hours.
Summary
MANTRA was drained of ~$3.6M (720.9M MANTRA) via the Cosmos EVM underflow bug, with funds taken from the burn address and legacy genesis multisig. The chain was halted for ~30 hours.
How It Was Compromised — L1 via Cosmos EVM Underflow Exploit
On August 20, 2026, MANTRA was exploited via the shared Cosmos EVM underflow bug (GHSA-7g4w-cg88-2cq2). The attacker drained approximately 720.9M MANTRA (~$3.6M) from the burn address and legacy genesis multisig. The chain was halted for approximately 30 hours before resuming on a patched version.
Fund Flow & Laundering Analysis
The stolen MANTRA was bridged off-chain and sold through decentralized and centralized exchanges.