Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via wasi-http

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-119131 · Microsoft / collected KEV context

EUVD-2026-113198

GHSA-9vvr-fpgq-p9gc

RUSTSEC-2026-0351

GHSA-w36r-2hch-9xp9

cve-program · CVE-2026-119131

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-w36r-2hch-9xp9
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-wasi-http

euvd · EUVD-2026-113198

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-w36r-2hch-9xp9
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-wasi-http

nvd · CVE-2026-119131

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-w36r-2hch-9xp9
• https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-wasi-http

osv · RUSTSEC-2026-0351

• https://crates.io/crates/wasmtime-wasi-http
• https://rustsec.org/advisories/RUSTSEC-2026-0351.html
• https://github.com/bytecodealliance/wasmtime/pull/14728

• Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability in wasmtime-wasi-http that lets guests crash the host by sending long request URLs. Guests can use set-path-with-query with a '?' after byte 6… · Advisory content revised · 5 Nov 2026
• `wasi-http`: Request with long url before query parameter crashes host · Advisory content revised · 30 Oct 2026
• Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 Host Panic via wasi-http · Newly collected advisory · 29 Oct 2026