High severityGoSSRF & Path TraversalMEDIUM confidence
Path Traversal
A user-controlled value is used to build a filesystem path, enabling path traversal (CWE-22).
Standards mapping
- OWASP Top 10
- A01:2021 - Broken Access Control
- OWASP ASVS
- V12.3.1 (L1)
Vulnerable vs. safe
Flagged by this check
_, _ = os.ReadFile(name)Passes - the safe pattern
_, _ = os.ReadFile(name)Why it matters & how to fix it
A user-controlled value is used to build a filesystem path, enabling path traversal (CWE-22). Input containing '..' or an absolute path can read or write files outside the intended directory. Canonicalize with filepath.Clean, join onto a fixed base directory, and confirm the resolved path (filepath.EvalSymlinks / strings.HasPrefix against the base) stays inside it; reject absolute paths and '..' segments.
References
Rule ID integsec-go-path-traversal - engine: Opengrep - license: MIT - Copyright (c) IntegSec Inc.
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