{
  "fix": "OPENSUSE-SU-2026:21984-1",
  "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
  "summary": "OPENSUSE-SU-2026:21984-1, released September 30, 2026, fixes 15 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 5 packages",
  "released": "2026-09-30T17:58:26Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-76183, rated Critical",
  "supported": true,
  "cveCount": 15,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00679,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://osv.dev/vulnerability/openSUSE-SU-2026:21984-1",
  "appliesTo": [
    {
      "product": "libtcnative-1-0",
      "productUrl": "https://patchblox.com/security/product/linux/libtcnative-1-0",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.3.9-160000.1.1",
      "supported": true
    },
    {
      "product": "libtcnative-2-0",
      "productUrl": "https://patchblox.com/security/product/linux/libtcnative-2-0",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.0.16-160000.1.1",
      "supported": true
    },
    {
      "product": "tomcat",
      "productUrl": "https://patchblox.com/security/product/linux/tomcat",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "9.0.122-160000.1.1",
      "supported": true
    },
    {
      "product": "tomcat10",
      "productUrl": "https://patchblox.com/security/product/linux/tomcat10",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "10.1.60-160000.1.1",
      "supported": true
    },
    {
      "product": "tomcat11",
      "productUrl": "https://patchblox.com/security/product/linux/tomcat11",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "11.0.26-160000.1.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-76183",
      "url": "https://patchblox.com/security/cve/CVE-2026-76183",
      "title": "libtcnative-1-0: security constraints for any WebSocket endpoint can be bypassed (bsc#1282629).",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.00566,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-86248",
      "url": "https://patchblox.com/security/cve/CVE-2026-86248",
      "title": "libtcnative-1-0: CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.00496,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-86350",
      "url": "https://patchblox.com/security/cve/CVE-2026-86350",
      "title": "libtcnative-1-0: HTTP/2 requests can cause request header mix-ups and HTTP request smuggling (bsc#1282787).",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00483,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-86246",
      "url": "https://patchblox.com/security/cve/CVE-2026-86246",
      "title": "libtcnative-1-0: insecure ALLOW_CLIENT_RENEGOTIATION, NO_EXTENDED_MASTER_SECRET, IGNORE_UNEXPECTED_EOF and",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00347,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-77791",
      "url": "https://patchblox.com/security/cve/CVE-2026-77791",
      "title": "libtcnative-1-0: uncontrolled resource consumption when sending WebSocket close message enabled a DoS attack",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00679,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-86243",
      "url": "https://patchblox.com/security/cve/CVE-2026-86243",
      "title": "libtcnative-1-0: buffer overread during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00564,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-87022",
      "url": "https://patchblox.com/security/cve/CVE-2026-87022",
      "title": "libtcnative-1-0: WebSocket message smuggling when per-message-deflate is used (bsc#1282581).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.0054,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-75973",
      "url": "https://patchblox.com/security/cve/CVE-2026-75973",
      "title": "libtcnative-1-0: improper authentication when Jakarta authentication is configured with \u0060SimpleAuthConfigProvider\u0060",
      "priority": "High",
      "severity": "high",
      "cvss": 7.3,
      "epss": 0.00518,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-78437",
      "url": "https://patchblox.com/security/cve/CVE-2026-78437",
      "title": "libtcnative-1-0: incomplete cleanup allows a malformed request to potentially cause requests from another user to fail",
      "priority": "High",
      "severity": "high",
      "cvss": 7.3,
      "epss": 0.00511,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-78383",
      "url": "https://patchblox.com/security/cve/CVE-2026-78383",
      "title": "libtcnative-1-0: allocation of resources without limits or throttling allows an unauthenticated AJP request to pin an",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.005,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-77762",
      "url": "https://patchblox.com/security/cve/CVE-2026-77762",
      "title": "libtcnative-1-0: stale HPACK emitter injects trailers fields into another HTTP/2 request (bsc#1282599).",
      "priority": "High",
      "severity": "high",
      "cvss": 8.1,
      "epss": 0.00464,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-79677",
      "url": "https://patchblox.com/security/cve/CVE-2026-79677",
      "title": "libtcnative-1-0: missing release of resource after effective lifetime and comparison using wrong factors allows for",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00422,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-86247",
      "url": "https://patchblox.com/security/cve/CVE-2026-86247",
      "title": "libtcnative-1-0: race condition allows client certificate verification requirements to be down-graded for some",
      "priority": "High",
      "severity": "high",
      "cvss": 7.4,
      "epss": 0.00202,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-77756",
      "url": "https://patchblox.com/security/cve/CVE-2026-77756",
      "title": "libtcnative-1-0: inconsistent interpretation of HTTP requests allows an attacker to cause one request from another user",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.7,
      "epss": 0.00526,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-73581",
      "url": "https://patchblox.com/security/cve/CVE-2026-73581",
      "title": "libtcnative-1-0: OpenSSL and OpenSSL-FFM TLS implementations ignore CRLs when certificate uses a keystore",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00159,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}