{
  "fix": "RHSA-2026:4463",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2026-4463",
  "summary": "RHSA-2026:4463, released March 12, 2026, fixes 4 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 8 packages",
  "released": "2026-03-12T22:27:24Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-1299, high severity",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00573,
  "maxCvss": 8.1,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2026:4463",
  "appliesTo": [
    {
      "product": "python3.12",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-debug",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-debug",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-devel",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-idle",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-idle",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-libs",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-libs",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-rpm-macros",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-rpm-macros",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-test",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-test",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    },
    {
      "product": "python3.12-tkinter",
      "productUrl": "https://patchblox.com/security/product/linux/python3.12-tkinter",
      "release": "RHEL 8",
      "fixedVersion": "0:3.12.12-3.el8_10",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-1299",
      "url": "https://patchblox.com/security/cve/CVE-2026-1299",
      "title": "email BytesGenerator header injection due to unquoted newlines",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.1,
      "epss": 0.00573,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-0865",
      "url": "https://patchblox.com/security/cve/CVE-2026-0865",
      "title": "wsgiref.headers.Headers allows header newline injection",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.00554,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-15366",
      "url": "https://patchblox.com/security/cve/CVE-2025-15366",
      "title": "IMAP command injection in user-controlled commands",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.1,
      "epss": 0.00431,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-15367",
      "url": "https://patchblox.com/security/cve/CVE-2025-15367",
      "title": "POP3 command injection in user-controlled commands",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.1,
      "epss": 0.00377,
      "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"
  }
}