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RUSTSEC-2026-0323 (GHSA-96F6-R43R-8C24)
Vulnerability from osv_rustsec – Published: 2026-10-02 12:00 – Updated: 2026-10-02 20:27 – Source website
VLAI
Summary
fd_readdir copies uninitialized struct padding into guest memory
Details
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-96f6-r43r-8c24 For more information see the GitHub-hosted security advisory.
Severity
References
{
"affected": [
{
"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
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "wasmtime-wasi",
"purl": "pkg:cargo/wasmtime-wasi"
},
"ranges": [
{
"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"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"GHSA-96f6-r43r-8c24"
],
"database_specific": {
"license": "CC0-1.0"
},
"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.",
"id": "RUSTSEC-2026-0323",
"modified": "2026-10-02T20:27:46Z",
"published": "2026-10-02T12:00:00Z",
"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"
}
],
"related": [],
"severity": [
{
"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",
"type": "CVSS_V4"
}
],
"summary": "fd_readdir copies uninitialized struct padding into guest memory"
}