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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| vyper | pip | < 0.3.8 | 0.3.8 |
PythonPythonMiggo AIRoot Cause AnalysisThe vulnerability stems from improper range validation in loop construction. The commit diff shows the fix was applied in vyper/codegen/stmt.py's _parse_For_range function by adding a clamp check. This function handles range-based loops and previously didn't validate that 'start + rounds' stays within the type's bounds. The added clamp('le', start, hi + 1 - rounds) prevents overflow by ensuring the loop iterations don't exceed the type's maximum value. The test cases added in the commit specifically target this pattern of 'range(x, x+N)' loops, confirming this was the vulnerable code path.
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