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Call to ‘System.IO.Path.Combine’ may silently drop its earlier arguments — CodeQL query help documentation CodeQL docs
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Call to ‘System.IO.Path.Combine’ may silently drop its earlier arguments

ID: cs/path-combine Kind: problem Security severity: Severity: recommendation Precision: very-high Tags: - quality - reliability - correctness Query suites: - csharp-code-quality.qls - csharp-security-and-quality.qls

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Path.Combine may silently drop its earlier arguments if its later arguments are absolute paths. E.g. Path.Combine("C:\\Users\\Me\\Documents", "C:\\Program Files\\") == "C:\\Program Files".

Recommendation

Use Path.Join instead.

References