{"id":"RUSTSEC-2026-0420","aliases":["GHSA-hmmr-87qq-258j"],"title":"wasip3 UDP `send` can deliver a datagram to an address only allowed for receiving","titleSource":"OSV","descriptionSource":"OSV","description":"This is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hmmr-87qq-258j\nFor more information see the GitHub-hosted security advisory.","severity":"medium","score":6.4,"published":"2026-10-29T12:00:00.000Z","modified":"2026-10-30T10:45:03.672Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"crates.io","name":"wasmtime-wasi","sources":[{"name":"OSV · RUSTSEC-2026-0420","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0420"}],"ranges":[{"events":[{"introduced":"48.0.0"},{"fixed":"48.0.8"},{"introduced":"49.0.0"},{"fixed":"49.0.5"},{"introduced":"50.0.0"},{"fixed":"50.0.1"}],"type":"SEMVER"}],"versions":[],"fixed":["48.0.8","49.0.5","50.0.1"]}],"sourceAffected":[],"references":["https://crates.io/crates/wasmtime-wasi","https://rustsec.org/advisories/RUSTSEC-2026-0420.html","https://github.com/bytecodealliance/wasmtime/pull/15077"],"sources":[{"name":"OSV","id":"RUSTSEC-2026-0420","modified":"2026-10-30T10:45:03.672782746Z","url":"https://osv.dev/vulnerability/RUSTSEC-2026-0420"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","score":6.4}],"products":[],"remediation":[],"observedAt":"2026-10-30T10:50:44.750Z","kev":{"status":"unavailable","checkedAt":"2026-10-31T15:20:33.119Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}