{
  "cveId": "CVE-2026-115389",
  "url": "https://patchblox.com/security/cve/CVE-2026-115389",
  "summary": "CVE-2026-115389 is fixed in rust-wasmtime on 1 platform by DEBIAN-CVE-2026-115389 (version 36.0.20\u002Bdfsg-1), released November 3, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "rust-wasmtime: Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not adequately account for host allocati...",
  "description": "Wasmtime before 36.0.16, 37.0.0 before 48.0.3, and 49.0.0 before 49.0.1 does not adequately account for host allocations when lifting guest values through the dynamically-typed Val API, bypassing the hostcall fuel limit. A malicious WebAssembly guest can return crafted values that allocate at least ~100x more host memory than tracked, causing denial of service.",
  "published": "2026-10-22T19:17:46Z",
  "severity": "",
  "epss": 0.00153,
  "epssPercentile": 0.04437,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rust-wasmtime",
      "release": "Debian 14",
      "fixedVersion": "36.0.20\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-115389",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-115389",
      "released": "2026-11-03T18:58:21Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}