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Vulnerability Intelligence
Miggo AI
Miggo AIMiggo AI| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| langchain | pip | < 0.0.308 | 0.0.308 |
| numexpr | pip | < 2.8.5 | 2.8.5 |
Miggo AIRoot Cause AnalysisThe vulnerability stems from numexpr's evaluate function using eval() on unsanitized input. The commit 4b2d89c in numexpr added regex-based input validation (_forbidden_re) to block dangerous characters (;,:, __, [), confirming the pre-patch evaluate function was vulnerable. Langchain's LLMMathChain used this vulnerable evaluate implementation, allowing attackers to execute code via crafted math expressions. Both the low-level expression parser (stringToExpression) and the public evaluate API are implicated.
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