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OWASP has released the Smart Contract Top 10: 2026, a guide to help Web3 developers, security auditors, and protocol owners identify critical vulnerabilities in smart contracts.
This edition, part of the OWASP Smart Contract Security initiative, uses security incidents and survey data from 2025 to identify the most impactful risks ahead.
Meta’s louisiana data center to exceed 250 billion price tag
By infosecbulletin
/ Tuesday , July 14 2026
Meta announced on Monday that its data center in Richland Parish, Louisiana, will grow to 5 gigawatts of computing power....
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Ransomware Crisis in 2026: 5,064 Organizations Affected in 135 Countries
By infosecbulletin
/ Sunday , July 12 2026
Global ransomware attacks stayed very high in the first seven months of 2026. There were 5,064 confirmed victims in 135...
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Palo Alto Networks Addresses 13 Vulnerabilities
By infosecbulletin
/ Sunday , July 12 2026
Palo Alto Networks shared warnings on Wednesday about over twelve security issues in its products. The new warnings include 13 security...
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Critical Dell BIOS & Zimbra Flaws Expose Enterprise Systems
By infosecbulletin
/ Sunday , July 12 2026
A critical flaw with how Dell saves BIOS passwords lets anyone quickly recover these passwords from a flash dump without...
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CoLoCity Launches New 1.0 MW Data Center Facility at Gulshan
By infosecbulletin
/ Saturday , July 11 2026
CoLoCity is proud to launch a new Data Center in Gulshan-2. It is designed to meet the growing demand for...
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Daily Cyber security update for 10. 07. 2026
By infosecbulletin
/ Friday , July 10 2026
Cyberattacks are rising around the world, including ransomware, malware, data leaks, and hacked websites. These events show how complex and...
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How Hacker Compromise AWS Cloud Environment Using AI in 72 Hours
By infosecbulletin
/ Friday , July 10 2026
A major AWS attack shows how attackers with AI can connect known cloud strategies to go from first access to...
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Mycelium Framework: First AI-as-a-Service Botnet
By infosecbulletin
/ Thursday , July 9 2026
A new cybercrime ad is catching attention in the security world. It talks about a botnet that doesn't just get...
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CrowdStrike Shows 5 New Prompt Injection Techniques for AI Agents
By infosecbulletin
/ Wednesday , July 8 2026
CrowdStrike has shared five new ways to inject prompts, showing the rising danger to AI agents as more organizations use...
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Critical GCP Dialogflow Vulnerability Allows Malicious Code Injection
By infosecbulletin
/ Wednesday , July 8 2026
A critical flaw in Google Cloud Platform’s Dialogflow CX lets attackers add harmful code to a company's AI chatbot system....
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The 2026 ranking shows that attackers are evolving. They are now combining different vulnerabilities, such as linking flash loans with oracle manipulation and exploiting poor upgrade governance, to cause more financial harm.
2026 Ranking
| Rank | Vulnerability | Description |
|---|---|---|
| SC01:2026 | Access Control Vulnerabilities | Flaws that allow unauthorized users or roles to invoke privileged functions or modify critical state, often leading to full protocol compromise. |
| SC02:2026 | Business Logic Vulnerabilities | Design-level flaws in lending, AMM, reward, or governance logic that break economic or functional rules, enabling value extraction even when low-level checks appear correct. |
| SC03:2026 | Price Oracle Manipulation | Weak oracles and unsafe price integrations that let attackers skew reference prices, enabling under-collateralized borrowing and mispriced swaps. |
| SC04:2026 | Flash Loan–Facilitated Attacks | Attacks using large, uncollateralized flash loans to amplify small logic, pricing, or arithmetic bugs into large drains within a single transaction. |
| SC05:2026 | Lack of Input Validation | Missing or weak validation of user, admin, or cross-chain inputs that allows unsafe parameters to reach core logic, corrupting state or enabling fund loss. |
| SC06:2026 | Unchecked External Calls | Unsafe interactions with external contracts where failures, reverts, or callbacks are not safely handled, often enabling reentrancy or inconsistent state. |
| SC07:2026 | Arithmetic Errors | Subtle bugs in integer math, scaling, and rounding — especially in share, interest, and AMM calculations — that can siphon value when paired with flash loans. |
| SC08:2026 | Reentrancy Attacks | External calls that re-enter vulnerable functions before state is fully updated, allowing repeated withdrawals or state changes from outdated contract views. |
| SC09:2026 | Integer Overflow and Underflow | Dangerous arithmetic on code paths without robust overflow checks, leading to wrapped values, broken invariants, and potential liquidity drains. |
| SC10:2026 | Proxy & Upgradeability Vulnerabilities | Misconfigured or weakly governed proxy, initialization, and upgrade mechanisms that let attackers seize control of implementations or reinitialize critical state. |
Over $2.2 billion has been lost to crypto hacks recently, highlighting the need for a structured vulnerability framework in the blockchain ecosystem.
The OWASP Smart Contract Top 10: 2026 is designed to work with other OWASP resources like the SC Weakness Enumeration, Checklist, and Top 15 Web3 Attack Vectors to create a full framework for secure smart contract development, auditing, and compliance.
