| Package | Affected versions | Patched versions |
|---|---|---|
| github.com/envoyproxy/envoy | < 1.9.1 | 1.9.1 |
| envoy | ≤ 1.9.0 |
Envoy 1.9.0 and before does not normalize HTTP URL paths. A remote attacker may craft a relative path, e.g., something/../admin, to bypass access control, e.g., a block on /admin. A backend server could then interpret the non-normalized path and provide an attacker access beyond the scope provided for by the access control policy.
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