{
  "cveId": "CVE-2020-8562",
  "url": "https://patchblox.com/security/cve/CVE-2020-8562",
  "summary": "CVE-2020-8562 is fixed in kubernetes on 1 platform, first by DEBIAN-CVE-2020-8562, released February 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "kubernetes: As mitigations to a report from 2019 and CVE-2020-8555, Kubernetes attempts to prevent proxied connections from acces...",
  "description": "As mitigations to a report from 2019 and CVE-2020-8555, Kubernetes attempts to prevent proxied connections from accessing link-local or localhost networks when making user-driven connections to Services, Pods, Nodes, or StorageClass service providers. As part of this mitigation Kubernetes does a DNS name resolution check and validates that response IPs are not in the link-local (169.254.0.0/16) or localhost (127.0.0.0/8) range. Kubernetes then performs a second DNS resolution without validation for the actual connection. If a non-standard DNS server returns different non-cached responses, a user may be able to bypass the proxy IP restriction and access private networks on the control plane.",
  "published": "2022-02-01T11:15:10Z",
  "severity": "low",
  "cvss": 3.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
  "epss": 0.01186,
  "epssPercentile": 0.68048,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "kubernetes",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.20.5\u002Breally1.20.2-1",
      "fix": "DEBIAN-CVE-2020-8562",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-8562",
      "released": "2022-02-01T11:15:10Z"
    },
    {
      "platform": "linux",
      "product": "kubernetes",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.20.5\u002Breally1.20.2-1",
      "fix": "DEBIAN-CVE-2020-8562",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-8562",
      "released": "2022-02-01T11:15:10Z"
    },
    {
      "platform": "linux",
      "product": "kubernetes",
      "release": "Debian 14",
      "fixedVersion": "1.20.5\u002Breally1.20.2-1",
      "fix": "DEBIAN-CVE-2020-8562",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-8562",
      "released": "2022-02-01T11:15:10Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}