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cve/2019/CVE-2019-9901.md
0xMarcio cb00e1339f Update CVE list 2025-09-29 21:09
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CVE-2019-9901

Description

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.

POC

Reference

Github