{"id":"RUSTSEC-2026-0323","aliases":["GHSA-96f6-r43r-8c24"],"title":"fd_readdir copies uninitialized struct padding into guest memory","summary":"fd_readdir copies uninitialized struct padding into guest memory","severity":"none","vendor":"wasmtime-wasi","product":"wasmtime-wasi","ecosystem":"rust","affected":["wasmtime-wasi >= 49.0.0, < 49.0.2"],"patched":["wasmtime-wasi 49.0.2"],"published":"2026-10-02","updated":"2026-10-02","sourceUpdated":"2026-10-02T20:30:02.585830483Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2026-0323","references":[{"url":"https://crates.io/crates/wasmtime-wasi"},{"url":"https://rustsec.org/advisories/RUSTSEC-2026-0323.html"},{"url":"https://github.com/bytecodealliance/wasmtime/pull/14487"}],"tags":["osv","rust"],"ingestedAt":"2026-10-03T07:26:10.039Z","slug":"RUSTSEC-2026-0323","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-96f6-r43r-8c24\nFor more information see the GitHub-hosted security advisory.\n\n## Affected packages\n\n- `wasmtime-wasi >= 49.0.0, < 49.0.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `wasmtime-wasi 49.0.2`","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}