LOWCVSS v3.1 3.7Vulnerability
CVE-2026-126406
The wasmtime-wasi-http p2 implementation in Wasmtime before 36.0.20, 37.0.0 before 48.0.8, 49.0.0 before 49.0.5, and 50.0.0 before 50.0.1 can send conflicting content-length headers, or ones not matching the body, in outgoing requests. A guest that reuses a received response's headers resource to send a bodyless request can enable request smuggling against non-compliant servers, potentially bypassing embedder destination access controls.
Properties
- Severity
- LOW
- Nvd fetched at
- 2026-11-14T00:40:25.638091+00:00
- Epss score
- 0.00319
- Cvss severity
- LOW
- Cvss score
- 3.7
- Retrieved at
- 2026-11-14T00:51:03+00:00
- Last source
- FIRST EPSS
- Score
- 3.7
- Cvss version
- 3.1
- Cve id
- CVE-2026-126406
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- First seen by Signal
- 2026-11-13T17:31:47+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Published at
- 2026-11-13T10:17:45.440
- Last modified
- 2026-11-13T10:17:45.583
- Epss percentile
- 0.2517
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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