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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| github.com/envoyproxy/envoy(Go) | 0 | 1.9.1 | N/A |
CVSS Metrics
