Upbit halts Curve Finance token trading after $100M exploit

Upbit halts Curve Finance token trading after $100M exploit

The Exploit That Shook the Blockchain Industry: Upbit Suspends Token Trading


The blockchain industry was recently rocked by a significant exploit that targeted Curve Finance’s CRV token. South Korean exchange, Upbit, temporarily suspended trading of the token after vulnerabilities were discovered in some of Curve’s stablecoin pools. This exploit has not only posed a threat to investors, but it has also highlighted the need for enhanced security measures in the blockchain space.

Understanding the Vulnerability

The exploit that affected Curve Finance’s CRV token was attributed to a “re-entrancy” bug exploit in the Vyper programming language used in its tech stack. To put it simply, a re-entrancy bug occurs when an attacker repeatedly calls a vulnerable function before the previous execution completes, leading to unexpected behavior and potential losses. In this case, it was exploited to drain funds from the stablecoin pools associated with CRV.

This incident serves as a reminder that even well-established projects in the blockchain industry are not immune to vulnerabilities. It underscores the importance of thorough code audits, ongoing security assessments, and the adoption of best practices to prevent such exploits.

Impact on Curve Finance and CRV Token

Curve Finance has suffered a potential loss of over $100 million as a result of this exploit. The confidence in the project has taken a hit, and the price of the CRV token has subsequently plummeted. According to CoinDesk data, the token has experienced a 12.36% drop, currently trading at 6 cents.

This incident showcases the interdependencies of the cryptocurrency market. When vulnerabilities are discovered in one project, it can have a cascading effect on other tokens and exchanges. It is crucial for all stakeholders, including investors, exchanges, and project teams, to collaborate and respond proactively to mitigate the impact of such incidents.

Response from Exchanges

Upbit, upon identifying the vulnerabilities, took immediate action to protect its users by temporarily suspending deposits, withdrawals, and trading of the CRV token. This decision demonstrates Upbit’s commitment to ensuring the safety of digital asset transactions on its platform.

On the other hand, other exchanges, like Huobi, have chosen to monitor the situation closely before taking any action. This cautious approach allows them to gather more information about the extent of the exploit and its potential impact on their platforms. Exchanges play a critical role in maintaining market stability, and their response to such incidents sets the tone for the overall industry.

The Road Ahead: Strengthening Blockchain Security

The exploit targeting Curve Finance’s CRV token serves as a wake-up call for the blockchain industry. It highlights the need for continuous efforts to enhance security measures and prevent similar incidents in the future. Several steps can be taken to achieve this:

  1. Thorough Audits: Projects must invest in rigorous code audits conducted by trusted third-party security experts. These audits identify potential vulnerabilities and recommend improvements to secure the project’s codebase.

  2. Security Assessments: Regular security assessments should be conducted to identify and address any emerging vulnerabilities. This includes ongoing monitoring of the project’s codebase and infrastructure for any potential risks.

  3. Industry Collaboration: The blockchain industry should foster a culture of collaboration and information sharing. This includes sharing best practices, lessons learned from past exploits, and promoting responsible disclosure of vulnerabilities to ensure prompt mitigation.

  4. Education and Awareness: Educating developers, investors, and users about security best practices is crucial. By raising awareness about potential risks and providing resources for secure development and investment, the industry can improve overall security posture.

  5. Smart Contract Standards: Standardizing best practices for the development and deployment of smart contracts can prevent coding mistakes that lead to vulnerabilities. The creation of industry-wide standards helps establish a solid foundation for secure smart contract development.


The recent exploit that impacted Curve Finance’s CRV token has sent shockwaves through the blockchain industry. It serves as a stark reminder of the importance of proactive security measures and measures to protect user funds. While incidents like these can temporarily disrupt the market, they also present an opportunity for the industry to come together and strengthen security practices. By learning from these incidents, investing in robust security measures, and fostering collaboration, the blockchain industry can continue its growth trajectory while minimizing risks for all stakeholders involved.

Edited by Parikshit Mishra.