# crytic/not-so-smart-contracts

Examples of Solidity security issues

Repository: https://github.com/crytic/not-so-smart-contracts
Canonical: https://ross.abutalabs.com/products/not-so-smart-contracts
Language: Solidity
License: Apache-2.0
License Family: permissive
Topics: solidity, vulnerabilities, ethereum
Archived: true
Last push: 2023-02-24T12:18:59+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3292, "days_push": 1286, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2226, forks 363 (observed 2026-08-28T04:06:28.775421+00:00)

## What it is
A curated collection of example Solidity smart contracts demonstrating common Ethereum and EVM vulnerabilities, including real-world code samples and honeypot analyses. Each example documents the vulnerability type, attack scenarios, mitigation recommendations, and references, serving as a learning resource, security review reference, and benchmark for analysis tools.

## Use cases
- learn common solidity smart contract vulnerabilities
- find examples of reentrancy and integer overflow attacks
- benchmark smart contract security analysis tools
- reference material when auditing ethereum contracts
- study real-world smart contract exploits and honeypots
- train developers on secure solidity coding practices

## When to choose
- you are learning or teaching Solidity and EVM security
- you need concrete vulnerable code examples for security reviews or tool testing
- you want documented attack scenarios and mitigations for common contract flaws

## When to avoid
- you need an automated vulnerability scanner rather than example code
- you need actively maintained content - the project has moved to crytic/building-secure-contracts
- you work with non-EVM blockchain platforms

## Facets
- artifact type: learning-resource
- maturity: maintenance
- function: security, testing, developer-tools
- domain: blockchain, security, education, tutorials
- platform: cross-platform
- tags: solidity, smart-contracts, ethereum, vulnerabilities, evm, security-audit, examples, honeypots

## Member repositories
- crytic/not-so-smart-contracts (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:28.775421+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:44:52.990791+00:00, confidence not recorded.
  - readme: https://github.com/crytic/not-so-smart-contracts (fetched 2026-08-28T04:06:28.775421+00:00, sha bcecddd5894f)
- Data as of 2026-08-30T08:39:29.467469+00:00.