{
  "cveId": "CVE-2026-27171",
  "url": "https://patchblox.com/security/cve/CVE-2026-27171",
  "summary": "CVE-2026-27171 is fixed in 37 products on 1 platform, first by lib32z1 1:1.3.dfsg-3.1ubuntu2.2, released February 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.",
  "description": "zlib before 1.3.2 allows CPU consumption via crc32_combine64 and crc32_combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.",
  "published": "2026-02-17T20:16:00Z",
  "severity": "Low",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Improper Validation of Specified Quantity in Input",
  "epss": 0.00248,
  "epssPercentile": 0.16157,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27171",
  "fixes": [
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      "platform": "linux",
      "product": "lib32z1",
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      "fix": "lib32z1 1:1.3.dfsg-3.1ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-lib32z1-1-1.3.dfsg-3.1ubuntu2.2",
      "released": "2026-02-17T20:16:00Z"
    },
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      "product": "lib32z1",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-lib32z1-1-1.3.dfsg-really1.3.1-1ubuntu3.1",
      "released": "2026-02-17T20:16:00Z"
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      "product": "lib64z1",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-lib64z1-1-1.3.dfsg-3.1ubuntu2.2",
      "released": "2026-02-17T20:16:00Z"
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      "released": "2026-02-17T20:16:00Z"
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      "released": "2026-02-17T20:16:00Z"
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      "released": "2026-02-17T20:16:00Z"
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}