{
  "cveId": "CVE-2026-84890",
  "url": "https://patchblox.com/security/cve/CVE-2026-84890",
  "summary": "CVE-2026-84890 is fixed in 12 products on 1 platform, first by DEBIAN-CVE-2026-84890, released September 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "node-undici: undici\u0027s decompress interceptor decompresses response bodies according to the untrusted Content-Encoding header",
  "description": "undici\u0027s decompress interceptor decompresses response bodies according to the untrusted Content-Encoding header. While the number of content-encoding layers is capped, the total decompressed output size is unbounded and there is no configuration option to limit it. A malicious or faulty upstream can therefore return a small compressed payload, a compression bomb, that expands to hundreds of megabytes or more in client memory, an asymmetric resource consumption that can exhaust memory and crash the process. This affects undici versions from 7.15.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.",
  "published": "2026-09-04T18:18:01Z",
  "severity": "medium",
  "cvss": 5.9,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00412,
  "epssPercentile": 0.35751,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "node-undici",
      "release": "Debian 14",
      "fixedVersion": "8.10.2\u002Bdfsg\u002B~cs3.2.2-1",
      "fix": "DEBIAN-CVE-2026-84890",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-84890",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-docs",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-full-i18n",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-libs",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-libs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:24.21.0-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs24-npm",
      "release": "amzn 2023",
      "fixedVersion": "1:11.19.0-1.24.21.0.1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "pi-coding-agent",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.0.4-bp160.1.1",
      "fix": "OPENSUSE-SU-2026:22111-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22111-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "v8-13.6-devel",
      "release": "amzn 2023",
      "fixedVersion": "3:13.6.233.17-1.24.21.0.1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3107",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3107",
      "released": "2026-09-28T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}