{
  "fix": "OPENSUSE-SU-2026:22169-1",
  "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22169-1",
  "summary": "OPENSUSE-SU-2026:22169-1, released November 7, 2026, fixes 14 CVEs in bouncycastle (version 1.86-160000.1.1). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "bouncycastle security update",
  "released": "2026-11-07T00:47:19Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-17507, high severity",
  "supported": true,
  "cveCount": 14,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0042,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://osv.dev/vulnerability/openSUSE-SU-2026:22169-1",
  "appliesTo": [
    {
      "product": "bouncycastle",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.86-160000.1.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-17507",
      "url": "https://patchblox.com/security/cve/CVE-2026-17507",
      "title": "bouncycastle: This update for bouncycastle fixes the following issues:\n\n- CVE-2026-17507: negative signed leaf_index values from un...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.0042,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-17508",
      "url": "https://patchblox.com/security/cve/CVE-2026-17508",
      "title": "bouncycastle: This update for bouncycastle fixes the following issues:\n\n- CVE-2026-17507: negative signed leaf_index values from un...",
      "priority": "Routine",
      "epss": 0.00418,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-18036",
      "url": "https://patchblox.com/security/cve/CVE-2026-18036",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, NTRU reduced secret values with the % operator in three helpers whose referenc...",
      "priority": "Routine",
      "epss": 0.00282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-97873",
      "url": "https://patchblox.com/security/cve/CVE-2026-97873",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the raw JCA provider\u0027s legacy PBES1 (PKCS#5 scheme 1) and PKCS#12 PBE families...",
      "priority": "Routine",
      "epss": 0.00263,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71890",
      "url": "https://patchblox.com/security/cve/CVE-2026-71890",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, validation of an MLS (RFC 9420) external commit\u0027s proposal list, org.bouncycas...",
      "priority": "Routine",
      "epss": 0.00249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71885",
      "url": "https://patchblox.com/security/cve/CVE-2026-71885",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the Messaging Layer Security (MLS, RFC 9420) implementation did not bind an X....",
      "priority": "Routine",
      "epss": 0.00198,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71891",
      "url": "https://patchblox.com/security/cve/CVE-2026-71891",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, BLS12_381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every Basi...",
      "priority": "Routine",
      "epss": 0.00174,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71892",
      "url": "https://patchblox.com/security/cve/CVE-2026-71892",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the opt-in key-size validation on CMS key-transport recipients, org.bouncycast...",
      "priority": "Routine",
      "epss": 0.00173,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71886",
      "url": "https://patchblox.com/security/cve/CVE-2026-71886",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the high-level OpenPGP certificate API accepted a third-party certification or...",
      "priority": "Routine",
      "epss": 0.00167,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71889",
      "url": "https://patchblox.com/security/cve/CVE-2026-71889",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, neither copy of PKIXCertPathReviewer - org.bouncycastle.pkix.jcajce.PKIXCertPa...",
      "priority": "Routine",
      "epss": 0.00167,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-85515",
      "url": "https://patchblox.com/security/cve/CVE-2026-85515",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, a truncated OpenPGP encrypted message was accepted with no error reported, and...",
      "priority": "Routine",
      "epss": 0.00157,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71888",
      "url": "https://patchblox.com/security/cve/CVE-2026-71888",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the streaming CMS AuthenticatedData parser accepted a message whose digestAlgo...",
      "priority": "Routine",
      "epss": 0.00112,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-18040",
      "url": "https://patchblox.com/security/cve/CVE-2026-18040",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, HQC leaked secret-derived data through two side channels: its GF(2^8) arithmet...",
      "priority": "Routine",
      "epss": 0.00107,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-71887",
      "url": "https://patchblox.com/security/cve/CVE-2026-71887",
      "title": "bouncycastle: In Bouncy Castle for Java before 1.86, the high-level OpenPGP API accepted a data signature made by a signing subkey...",
      "priority": "Routine",
      "epss": 0.0009,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T13:56:55Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}