{
  "fix": "RHSA-2026:56143",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-56143",
  "summary": "RHSA-2026:56143, released June 2, 2026, fixes 4 CVEs in grafana-pcp (version 5.3.0-1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "grafana-pcp security update",
  "released": "2026-06-02T22:01:37Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-39821, rated Critical",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01834,
  "maxCvss": 10,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:56143",
  "appliesTo": [
    {
      "product": "grafana-pcp",
      "productUrl": "https://patchblox.com/security/product/linux/grafana-pcp",
      "release": "RHEL 10",
      "fixedVersion": "5.3.0-1.el10_0",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-39821",
      "url": "https://patchblox.com/security/cve/CVE-2026-39821",
      "title": "Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna",
      "priority": "Urgent",
      "severity": "Critical",
      "cvss": 10,
      "epss": 0.01834,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-27137",
      "url": "https://patchblox.com/security/cve/CVE-2026-27137",
      "title": "Incorrect enforcement of email constraints in crypto/x509",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.00661,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-42504",
      "url": "https://patchblox.com/security/cve/CVE-2026-42504",
      "title": "Quadratic complexity in WordDecoder.DecodeHeader in mime",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.0056,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-33810",
      "url": "https://patchblox.com/security/cve/CVE-2026-33810",
      "title": "Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.00346,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}