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zkLink Nova Bridge Loses $786K in Forged Batch Root Exploit

A security breach on zkLink Nova's Ethereum bridge resulted in the loss of $786,000 in crypto assets.

A security breach on zkLink Nova's Ethereum bridge resulted in the loss of $786,000 in crypto assets. Ethereum (ETH) is trading at $2,320.92. This is an original TLT brief based on reporting by Crypto Adventure, with live market data added, as of Thu, 29 Oct 2026 06:00:11 UTC.

Why it matters

The exploit highlights vulnerabilities in cross-chain bridge security, posing risks for users and potentially impacting trust in similar platforms.

Key takeaways
  • Attackers exploited a forged batch root to steal $786K in crypto from zkLink Nova.
  • Ethereum and ERC-20 tokens were unauthorizedly withdrawn through the bridge.
  • The incident underscores the need for improved security measures in cross-chain systems.

zkLink Nova's Ethereum bridge was exploited, resulting in the theft of $786,000 in cryptocurrency. The attack was facilitated by a forged batch root submitted through a publicly accessible relayer, which compromised the platform's cross-chain verification process.

Blockchain security firm Blockaid detected the exploit, which allowed unauthorized withdrawals of Ether (ETH) and various ERC-20 tokens from the bridge. This incident highlights the potential risks associated with cross-chain systems and the importance of robust security measures.

The breach was not corroborated by other outlets, but its impact is significant given the amount of funds lost and the implications for the broader DeFi ecosystem. The attack underscores the challenges of securing cross-chain transactions and the need for continuous security enhancements.

In the broader market context, the total crypto market cap stands at $2.75 trillion, with Bitcoin trading at a 24-hour loss of 0.79% and Ethereum down 1.29% to $2320.48. The Fear & Greed Index remains at 51, indicating a neutral market sentiment.

The incident may lead to increased scrutiny of cross-chain bridge security and could prompt other platforms to review and strengthen their security protocols. Investors and users should monitor developments in this space for any further security breaches or updates on security measures.

Market reaction since this brief Live

Since this brief published about 1 hour ago, Ethereum (ETH) has moved from $2,320.48 to $2,320.92 — +0.02%.

$2,320$2,321$2,321$2,321$2,321 published · $2,320 now · $2,321 (+0.02%) Oct 29 04:58 UTC Oct 29 06:01 UTC
BeforeSince publishPublished · $2,320.48

The chart plots ETH's price: grey is the move before this brief published, the vertical dashed line marks the moment it published, the horizontal dashed line is the price then, and the coloured area is the move since — from TLT's market data (daily resolution). It shows what happened after the news, not that the news caused it; many factors move prices. Not financial advice.

What this means in naira

At today's peer-to-peer rate, 1 ETH ≈ ₦3.21M (about $2,320.92), down 1.2% over 24 hours. The naira itself trades about 2.8% above the official rate on the P2P market, so a Nigerian buyer's effective cost differs from the headline dollar price.

Live market data

Current prices for the asset in this story — live, source-stamped, updated every 15 minutes.

$2,320.92 ▼ 1.22%
7d -5.05%MCap $283.58BFull ETH data →
The market when this published · October 29, 2026
Total market cap$2.75T
Bitcoin 24h-0.79%
Ethereum 24h-1.29%
BTC dominance58.6%
Fear & Greed51 · Neutral
On-chain & primary-source check

Figures and sectors in this story, checked live against on-chain aggregators · October 29, 2026.

SectorCross-chain bridges$12.29Bacross 31 protocolsDeFiLlama ↗
Ethereum DeFi TVL$45.83BDeFiLlama ↗
Bitcoin DeFi TVL$6.17BDeFiLlama ↗

TLT reads these figures directly from on-chain aggregators (DeFiLlama, mempool.space) at build time — independent of what any outlet reported. Sector totals aggregate every protocol DeFiLlama tracks in that category. Values are live and will change.

zkLink Nova Bridge Loses $786K in Forged Batch Root Exploit — questions & answers

How much was stolen in the zkLink Nova Bridge exploit?

Approximately $786,000 in cryptocurrency was stolen from zkLink Nova's Ethereum bridge.

What vulnerability was exploited in the attack?

The attack exploited a forged batch root submitted through a publicly accessible relayer.

What types of tokens were stolen?

Ether (ETH) and various ERC-20 tokens were unauthorizedly withdrawn from the bridge.

How much is 1 Ethereum worth in naira today?

About ₦3.21M at the live peer-to-peer (P2P) USDT rate, which is what Nigerians typically trade at — equivalent to roughly $2,320.92. The naira price moves with both ETH's US-dollar price and the USDT/NGN rate; use our Ethereum in naira page for any amount.

Which outlets reported this story?

This is an original TLT brief that synthesises reporting from Crypto Adventure. It is not a copy of any one article — follow the source links above for the original reporting.

TLT Newsdesk Data-stamped

TLT's newsdesk writes original briefs by synthesising coverage from across the crypto press — 50+ outlets including CoinDesk, The Block, Decrypt and Cointelegraph — cross-checking the figures they report — and verifying them against on-chain data from DeFiLlama and mempool.space — plus live market context (CoinGecko, Binance). We summarise and link to every source; we never reproduce full articles. Read our editorial standards and how we use AI. Not financial advice.

Market data verified against CoinGecko & Binance · October 29, 2026 ⛓ Timestamped at Bitcoin block #973,647 sha256:9877f1b79f2f6ed9
Based on reporting by Crypto Adventure — this is an original TLT summary with live market data, not the original article.Crypto Adventure · Oct 29 04:58 ↗

Original summary — not financial advice. This is an original TLT brief that summarises a development reported elsewhere and adds live market data for context; it is not the original article and reproduces no part of it. Follow the source link above for full details. Crypto is volatile and high-risk — always do your own research.