{"id":"RUSTSEC-2026-0420","aliases":["GHSA-hmmr-87qq-258j"],"title":"wasip3 UDP `send` can deliver a datagram to an address only allowed for receiving","summary":"wasip3 UDP `send` can deliver a datagram to an address only allowed for receiving","severity":"medium","cvss":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","vendor":"wasmtime-wasi","product":"wasmtime-wasi","ecosystem":"rust","affected":["wasmtime-wasi >= 50.0.0, < 50.0.1"],"patched":["wasmtime-wasi 50.0.1"],"published":"2026-10-29","updated":"2026-10-30","sourceUpdated":"2026-10-30T10:45:03.672782746Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0420","references":[{"url":"https://crates.io/crates/wasmtime-wasi"},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0420.html"},{"url":"https://github.com/bytecodealliance/wasmtime/pull/15077"}],"tags":["osv","rust"],"ingestedAt":"2026-10-30T19:05:36.525Z","slug":"RUSTSEC-2026-0420","body":"## Overview\n\nThis 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.\n\n## Affected packages\n\n- `wasmtime-wasi >= 50.0.0, < 50.0.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `wasmtime-wasi 50.0.1`","depth":"sunlit","depthScore":35,"depthScoreParts":{"impact":35.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}