CVE-2026-31245: Path Traversal Via Unchecked Path Join
The application relies on `path.join` or `path.resolve` to construct paths using input parameters without verifying that the resolved path stays within the intended base directory. This can cause path traversal vulnerabilities. Validate the resolved path against the expected base directory using `startsWith()` before accessing the file.
JSgreprules fetch cve-2026-31245-path-traversal-via-unchecked-path-join --engine opengrepDescription
The application relies on `path.join` or `path.resolve` to construct paths using input parameters without verifying that the resolved path stays within the intended base directory. This can cause path traversal vulnerabilities. Validate the resolved path against the expected base directory using `startsWith()` before accessing the file.
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