atheris
Coverage-guided Python fuzzer for detecting memory corruption in Python code and C extensions.
Install
npx skills add https://github.com/trailofbits/skills --skill atherisStats
| Total installs | 1,168 |
| Weekly installs | 1.2K |
| GitHub stars | 4.0K |
| First seen | Jan 19, 2026 |
| Source | @trailofbits/skills |
Summary
- Instruments both pure Python code and Python C extensions with AddressSanitizer support for detecting memory corruption
- Provides three instrumentation modes: decorator-based for single functions, context manager for module imports, and system-wide instrumentation
- Includes corpus management, minimization, and parallel fuzzing with configurable input size limits and execution time constraints
- Docker environment provided with pre-configured clang, LLVM, and sanitizer flags for immediate use on Linux
Tags
Related skills
| Skill | Installs | vs atheris |
|---|---|---|
| swift-protocol-di-testing | 1,125 | -43 |
| address-sanitizer | 1,190 | +22 |
| cairo-vulnerability-scanner | 1,169 | +1 |
| ruzzy | 1,155 | -13 |
| android-kotlin | 1,122 | -46 |
FAQ
- How many installs does atheris have?
- atheris has 1,168 total installs and 1.2K installs this week.
- Where is atheris hosted?
- atheris is published by @trailofbits/skills at https://github.com/trailofbits/skills.
- How many GitHub stars does atheris have?
- atheris has 4.0K GitHub stars.
- When was atheris first indexed?
- OrangeBot.AI first indexed atheris on Jan 19, 2026.
- How do I install atheris?
- Run: npx skills add https://github.com/trailofbits/skills --skill atheris