CVE-2026-121440
Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 fails to check forwarded trailers against the WasiHttpHooks::is_forbidden_header hook
CVSS
3.7
Bajo
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 3 nov 2026 · Última mod.: 3 nov 2026 · CWE-424
Sin historial EPSS suficiente todavía.
Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 fails to check forwarded trailers against the WasiHttpHooks::is_forbidden_header hook in wasi-http p3. WASIp3 guests can forward a request or response body so its trailers skip embedder-customized forbidden header filtering, undermining header restrictions the embedder intended.
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-894195.0 MED21.4%
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