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Tue, 03 Nov 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 Forwarded Trailers Header Filter Bypass | |
| First Time appeared |
Bytecodealliance
Bytecodealliance wasmtime |
|
| Weaknesses | CWE-424 | |
| CPEs | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Bytecodealliance
Bytecodealliance wasmtime |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-03T14:28:31.228Z
Reserved: 2026-11-03T12:32:14.752Z
Link: CVE-2026-121440
No data.
Status : Deferred
Published: 2026-11-03T15:17:35.707
Modified: 2026-11-03T15:17:35.863
Link: CVE-2026-121440
No data.
OpenCVE Enrichment
No data.
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CWE-424
Improper Protection of Alternate Path