{
  "cveId": "CVE-2026-78437",
  "url": "https://patchblox.com/security/cve/CVE-2026-78437",
  "summary": "CVE-2026-78437 is fixed in 27 products on 1 platform, first by DEBIAN-CVE-2026-78437, released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tomcat9: Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause...",
  "description": "Incomplete cleanup vulnerability in Apache Tomcat allows a malformed request to potentially (depends on timing) cause one request from another user to fail.    This issue affects Apache Tomcat: from 11.0.19 through 11.0.25, from 10.1.53 through 10.1.59, from 9.0.116 through 9.0.121.    Users are recommended to upgrade to version 11.0.26, 10.1.60 or 9.0.122, which fix the issue.",
  "published": "2026-09-23T12:17:07Z",
  "severity": "high",
  "cvss": 7.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
  "epss": 0.00511,
  "epssPercentile": 0.43861,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libtcnative-1-0",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.3.9-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21984-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
      "released": "2026-09-30T17:58:26Z"
    },
    {
      "platform": "linux",
      "product": "libtcnative-1-0",
      "release": "sles 15.6",
      "fixedVersion": "1.3.9-150600.16.9.2",
      "fix": "SUSE-SU-2026:4544-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4544-1",
      "released": "2026-10-06T10:01:18Z"
    },
    {
      "platform": "linux",
      "product": "libtcnative-1-0",
      "release": "sles 15.7",
      "fixedVersion": "1.3.9-150600.16.9.2",
      "fix": "SUSE-SU-2026:4544-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4544-1",
      "released": "2026-10-06T10:01:18Z"
    },
    {
      "platform": "linux",
      "product": "libtcnative-1-0",
      "release": "sles 16.0",
      "fixedVersion": "1.3.9-160000.1.1",
      "fix": "SUSE-SU-2026:23985-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23985-1",
      "released": "2026-09-30T17:49:13Z"
    },
    {
      "platform": "linux",
      "product": "libtcnative-2-0",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.0.16-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21984-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
      "released": "2026-09-30T17:58:26Z"
    },
    {
      "platform": "linux",
      "product": "libtcnative-2-0",
      "release": "sles 16.0",
      "fixedVersion": "2.0.16-160000.1.1",
      "fix": "SUSE-SU-2026:23985-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23985-1",
      "released": "2026-09-30T17:49:13Z"
    },
    {
      "platform": "linux",
      "product": "tomcat",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "9.0.122-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21984-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
      "released": "2026-09-30T17:58:26Z"
    },
    {
      "platform": "linux",
      "product": "tomcat",
      "release": "sles 15.6",
      "fixedVersion": "9.0.122-150200.123.2",
      "fix": "SUSE-SU-2026:4546-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4546-1",
      "released": "2026-10-06T10:05:09Z"
    },
    {
      "platform": "linux",
      "product": "tomcat",
      "release": "sles 15.7",
      "fixedVersion": "9.0.122-150200.123.2",
      "fix": "SUSE-SU-2026:4546-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4546-1",
      "released": "2026-10-06T10:05:09Z"
    },
    {
      "platform": "linux",
      "product": "tomcat",
      "release": "sles 16.0",
      "fixedVersion": "9.0.122-160000.1.1",
      "fix": "SUSE-SU-2026:23985-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23985-1",
      "released": "2026-09-30T17:49:13Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "Debian 14",
      "fixedVersion": "10.1.60-1",
      "fix": "DEBIAN-CVE-2026-78437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-78437",
      "released": "2026-09-24T19:30:44Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "10.1.60-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21984-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
      "released": "2026-09-30T17:58:26Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "sles 15.6",
      "fixedVersion": "10.1.60-150200.5.82.2",
      "fix": "SUSE-SU-2026:4546-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4546-1",
      "released": "2026-10-06T10:05:09Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "sles 15.7",
      "fixedVersion": "10.1.60-150200.5.82.2",
      "fix": "SUSE-SU-2026:4546-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4546-1",
      "released": "2026-10-06T10:05:09Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10",
      "release": "sles 16.0",
      "fixedVersion": "10.1.60-160000.1.1",
      "fix": "SUSE-SU-2026:23985-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23985-1",
      "released": "2026-09-30T17:49:13Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-admin-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-docs-webapp",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-el-5.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-jsp-3.1-api",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-lib",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-servlet-6.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat10-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:10.1.60-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3165",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3165",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "11.0.26-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21984-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21984-1",
      "released": "2026-09-30T17:58:26Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11",
      "release": "sles 15.6",
      "fixedVersion": "11.0.26-150600.13.36.2",
      "fix": "SUSE-SU-2026:4544-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4544-1",
      "released": "2026-10-06T10:01:18Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11",
      "release": "sles 15.7",
      "fixedVersion": "11.0.26-150600.13.36.2",
      "fix": "SUSE-SU-2026:4544-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4544-1",
      "released": "2026-10-06T10:01:18Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11",
      "release": "sles 16.0",
      "fixedVersion": "11.0.26-160000.1.1",
      "fix": "SUSE-SU-2026:23985-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23985-1",
      "released": "2026-09-30T17:49:13Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-admin-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-docs-webapp",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-el-6.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-jsp-4.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-lib",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-servlet-6.1-api",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat11-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:11.0.26-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3151",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3151",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "9.0.70-2",
      "fix": "DEBIAN-CVE-2026-78437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-78437",
      "released": "2026-09-24T19:30:44Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "9.0.70-2",
      "fix": "DEBIAN-CVE-2026-78437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-78437",
      "released": "2026-09-24T19:30:44Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "Debian 14",
      "fixedVersion": "9.0.70-2",
      "fix": "DEBIAN-CVE-2026-78437",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-78437",
      "released": "2026-09-24T19:30:44Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-admin-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-docs-webapp",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-el-3.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-jsp-2.3-api",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-lib",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-servlet-4.0-api",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-webapps",
      "release": "amzn 2023",
      "fixedVersion": "1:9.0.122-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3166",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3166",
      "released": "2026-11-07T01:06:52Z"
    }
  ],
  "noFixYet": [],
  "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"
  }
}