A vulnerability has been identified in the Express response.links function, allowing for arbitrary resource injection in the Link header when unsanitized data is used. The issue arises from improper sanitization in `Link` header values, which can allow a combination of characters like `,`, `;`, and `<>` to preload malicious resources. This vulnerability is especially relevant for dynamic parameters.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| express(npm) | 0 | 4.0.0-rc1 | N/A |
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