{
  "cveId": "CVE-2026-34944",
  "url": "https://patchblox.com/security/cve/CVE-2026-34944",
  "summary": "CVE-2026-34944 is fixed in rust-wasmtime on 1 platform by DEBIAN-CVE-2026-34944 (version 36.0.7\u002Bdfsg-1), released April 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "rust-wasmtime: Wasmtime is a runtime for WebAssembly",
  "description": "Wasmtime is a runtime for WebAssembly. Prior to 24.0.7, 36.0.7, 42.0.2, and 43.0.1, On x86-64 platforms with SSE3 disabled Wasmtime\u0027s compilation of the f64x2.splat WebAssembly instruction with Cranelift may load 8 more bytes than is necessary. When signals-based-traps are disabled this can result in a uncaught segfault due to loading from unmapped guard pages. With guard pages disabled it\u0027s possible for out-of-sandbox data to be loaded, but this data is not visible to WebAssembly guests. This vulnerability is fixed in 24.0.7, 36.0.7, 42.0.2, and 43.0.1.",
  "published": "2026-04-09T19:16:24Z",
  "severity": "medium",
  "cvss": 5.7,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.00236,
  "epssPercentile": 0.14694,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rust-wasmtime",
      "release": "Debian 14",
      "fixedVersion": "36.0.7\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-34944",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-34944",
      "released": "2026-04-09T19:16:24Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}