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    RUSTSEC-2026-0322 (GHSA-GQMC-89G8-P25R)

    Vulnerability from osv_rustsec – Published: 2026-10-02 12:00 – Updated: 2026-10-02 20:27 – Source website
    VLAI
    Summary
    Excessive allocated memory on the host when guests don't have stdio
    Details

    This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-gqmc-89g8-p25r For more information see the GitHub-hosted security advisory.

    Severity
    5.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    References
    To clipboard 

    {
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/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-gqmc-89g8-p25r"
  ],
  "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-gqmc-89g8-p25r\nFor more information see the GitHub-hosted security advisory.",
  "id": "RUSTSEC-2026-0322",
  "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-2026-0322.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bytecodealliance/wasmtime/pull/14482"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Excessive allocated memory on the host when guests don\u0027t have stdio"
}