{"id":"RUSTSEC-2026-0323","summary":"fd_readdir copies uninitialized struct padding into guest memory","details":"This is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-96f6-r43r-8c24\nFor more information see the GitHub-hosted security advisory.","aliases":["GHSA-96f6-r43r-8c24"],"modified":"2026-10-02T20:30:02.585830483Z","published":"2026-10-02T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/wasmtime-wasi"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0323.html"},{"type":"WEB","url":"https://github.com/bytecodealliance/wasmtime/pull/14487"}],"affected":[{"package":{"name":"wasmtime-wasi","ecosystem":"crates.io","purl":"pkg:cargo/wasmtime-wasi"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"36.0.17"},{"introduced":"37.0.0"},{"fixed":"48.0.4"},{"introduced":"49.0.0"},{"fixed":"49.0.2"}]}],"ecosystem_specific":{"affects":{"os":[],"functions":[],"arch":[]},"affected_functions":null},"database_specific":{"categories":[],"cvss":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0323.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}