CVSS 7.5 · High EPSS 0,30%
Kerentanan Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') pada envoyproxy envoy. Skor CVSS 3.1 7.5 (High) menurut github.com.
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer (HEADERS with FIN / headers-only close) but still carries a nonzero Content-Length into a complete upstream HTTP/1 request with unresolved body debt. In an HTTP/1 upstream deployment where the origin replies before reading the declared body and keeps the connection reusable, the beginning of the next Envoy-generated upstream request can be consumed as the first request's body. The remaining bytes are then parsed by the origin as a new HTTP/1 request. This was reproduced as a route-bypass/desync: direct /pwn was denied by Envoy, but the second downstream H3 stream received the response for backend-parsed GET /pwn HTTP/1.1. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| envoyproxy | envoy | Versi 1.35.0 hingga sebelum 1.35.13 |
| envoyproxy | envoy | Versi 1.36.0 hingga sebelum 1.36.9 |
| envoyproxy | envoy | Versi 1.37.0 hingga sebelum 1.37.5 |
| envoyproxy | envoy | Versi 1.38.0 hingga sebelum 1.38.3 |