| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/gofiber/fiber/v2 | ≥ 2.0.0, < 2.43.0 | 2.43.0 |
| github.com/rs/cors | < 1.5.0 | 1.5.0 |
| go cors | ≤ 1.3.0 |
The Olivier Poitrey Go CORS handler through 1.3.0 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.
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