{
  "fix": "OPENSUSE-SU-2026:21339-1",
  "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21339-1",
  "summary": "OPENSUSE-SU-2026:21339-1, released July 14, 2026, fixes 10 CVEs in python-mistune (version 3.1.3-160000.5.1). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "python-mistune security update",
  "released": "2026-07-14T10:41:18Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-59928, high severity",
  "supported": true,
  "cveCount": 10,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00651,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://osv.dev/vulnerability/openSUSE-SU-2026:21339-1",
  "appliesTo": [
    {
      "product": "python-mistune",
      "productUrl": "https://patchblox.com/security/product/linux/python-mistune",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.1.3-160000.5.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-59928",
      "url": "https://patchblox.com/security/cve/CVE-2026-59928",
      "title": "Mistune block_parser: quadratic-time parsing on long lists of repeated reference-link definitions",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00651,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59922",
      "url": "https://patchblox.com/security/cve/CVE-2026-59922",
      "title": "Mistune plugins/formatting: quadratic-time parsing on long runs of \u0060~~x~~\u0060, \u0060==x==\u0060, and \u0060^^x^^\u0060 markers (strikethrough / mark / insert)",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59925",
      "url": "https://patchblox.com/security/cve/CVE-2026-59925",
      "title": "inline_parser: quadratic-time parsing on long runs of \u0060**x**\u0060 and \u0060***x***\u0060 emphasis pairs",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.00644,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59924",
      "url": "https://patchblox.com/security/cve/CVE-2026-59924",
      "title": "python-mistune: This update for python-mistune fixes the following issues\n\n- CVE-2026-59922: quadratic-time parsing on long runs of s...",
      "priority": "High",
      "severity": "important",
      "epss": 0.00462,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59923",
      "url": "https://patchblox.com/security/cve/CVE-2026-59923",
      "title": "python-mistune: This update for python-mistune fixes the following issues\n\n- CVE-2026-59922: quadratic-time parsing on long runs of s...",
      "priority": "High",
      "severity": "important",
      "epss": 0.00348,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59927",
      "url": "https://patchblox.com/security/cve/CVE-2026-59927",
      "title": "python-mistune: This update for python-mistune fixes the following issues\n\n- CVE-2026-59922: quadratic-time parsing on long runs of s...",
      "priority": "Routine",
      "epss": 0.00529,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59929",
      "url": "https://patchblox.com/security/cve/CVE-2026-59929",
      "title": "python-mistune: This update for python-mistune fixes the following issues\n\n- CVE-2026-59922: quadratic-time parsing on long runs of s...",
      "priority": "Routine",
      "epss": 0.00341,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59926",
      "url": "https://patchblox.com/security/cve/CVE-2026-59926",
      "title": "Mistune: XSS via unescaped class option in Admonition directive",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 6.1,
      "epss": 0.00327,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-44896",
      "url": "https://patchblox.com/security/cve/CVE-2026-44896",
      "title": "Mistune: XSS via unescaped figclass/figwidth in Figure directive",
      "priority": "Routine",
      "severity": "Low",
      "epss": 0.00198,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59930",
      "url": "https://patchblox.com/security/cve/CVE-2026-59930",
      "title": "Mistune toc / TableOfContents directive: heading IDs use predictable \u0060toc_N\u0060 numbering with no slugification, allowing collision with attacker-controlled \u0060id=\u0022toc_N\u0022\u0060 content",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 4.3,
      "epss": 0.00192,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "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"
  }
}