Description


Wasmtime before 36.0.18, 37.0.0 before 48.0.6, and 49.0.0 before 49.0.3 does not verify that set-path-with-query values in wasmtime-wasi-http are paths, so absolute-form URLs are written verbatim as the HTTP/1.1 request target while the connection uses the allowed authority. A malicious guest can supply an absolute URL that a forward proxy or gateway at that authority honors, reaching hosts disallowed by embedder filtering policies.

Related CPE's


Could not find any relations

Weaknesses



CWE-20

CVSS impact metrics


CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

2.6 · Low

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-29T16:18:05.947Z

14 hours ago

Last modified

2026-10-29T21:17:17.830Z

9 hours ago