MANTRA Chain
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Summary
MANTRA Chain, a Cosmos-EVM layer-1 blockchain focused on real-world asset tokenization, halted all block production on August 20, 2026 after an attacker exploited a known vulnerability in the shared Cosmos EVM ICS20 precompile module. The network was offline for approximately 30 hours, the native OM token fell 18% to an all-time low of $0.004126, and South Korean exchanges Upbit, Bithumb, and Coinone placed OM on delisting watchlists. This is MANTRA's second major crisis in 2026, following the April 2025 collapse of OM by more than 90%, and occurs in the context of a broader Cosmos EVM security incident that also affected KiiChain and TAC.
Connected Entities
1 entities- + 2 more
Timeline(13 events)
2024-07-01
Vulnerable ICS20 precompile code introduced into the Cosmos EVM upstream codebase.
ASA-2026-002 — GitHub Security Advisory2024-12-11
OM token reaches all-time high of approximately $4.60, with market capitalization exceeding $4 billion.
AMBCrypto2026-01-21
Cosmos Labs is notified of suspicious activity on Saga EVM network; attacker drains approximately $7 million by exploiting the ICS20 precompile vulnerability.
ASA-2026-002 — GitHub Security Advisory2026-03-01
Cosmos Labs publicly releases v0.6.0 with fix for ASA-2026-002 ICS20 precompile vulnerability.
ASA-2026-002 — GitHub Security Advisory2025-04-13
OM token collapses more than 90% in under one hour, falling from approximately $6 to below $0.50 and wiping out more than $5 billion in market capitalization. MANTRA attributes the crash to forced liquidations by centralized exchanges.
CoinDesk2026-06-16
Inveniam Capital Partners announces agreement to acquire MANTRA, following a prior $20 million strategic investment made in August 2025.
GlobeNewswire2026-08-20
At 23:13:04 UTC (block 17,449,399), MANTRA Chain halts block production after detecting active exploitation of a vulnerability in the Cosmos EVM upstream dependency. OM falls to an all-time low of $0.004126, down approximately 18.5% on the day.
CryptoTicker / CoinDesk2026-08-21
Upbit, Bithumb, and Binance suspend OM deposits and withdrawals. MANTRA confirms two of its own wallet addresses were affected and states no user funds were exploited.
Koin Bulteni / CryptoRank2026-08-22
Block production resumes at approximately 05:30 UTC (block 17,449,400) following coordinated validator restart on patched version 8.4.0. KiiChain discloses a drain of 148,326,583.15 KII via the same Cosmos EVM vulnerability. TAC also halts. Binance withdrawal suspension for OM remains in effect as of 18:38 UTC, more than 15 hours post-restart.
crypto.news / AMBCrypto2026-08-24
Cosmos Labs issues advisory urging all Cosmos EVM chains to request validators halt their chains amid the broader security incident.
CryptoTimes2026-08-21
Upbit, Bithumb, and Coinone place OM on delisting watchlists under South Korea's Virtual Asset User Protection Act. A roughly one-month grace period applies before a final delisting decision.
CryptoRankDecision Log
- #3review revise-12⛓ pending8/27/2026, 3:22:43 AMhash: 3sPRj2v3Qmc1T3QoaTxvcCsJA6R1nZzxt8Xq28FCrRYw
- #2review⛓ pending8/27/2026, 3:22:42 AMhash: 5dQNLkGbuiY8ZxTCWEEHTKuGRr6ZeBgfg2EMxE52sSBq
- #1publish⛓ pending8/26/2026, 12:05:47 PMhash: EwULKKN3qj9dPL8U932Fsy1suRbVzzghenbA9jSmDw1i
21 of 24 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 8/26/2026, 12:05:32 PM
last updated: 8/27/2026, 3:22:42 AM
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