{
  "threat_severity" : "Moderate",
  "public_date" : "2026-05-12T15:19:35Z",
  "bugzilla" : {
    "description" : "tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated",
    "id" : "2476513",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2476513"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.3",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
    "status" : "verified"
  },
  "cwe" : "CWE-1286",
  "details" : [ "Improper Input Validation vulnerability in Apache Tomcat.\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 10.0.0-M1 through 10.0.27.\nOlder, end of support versions may also be affected.\nUsers are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.", "Apache Tomcat did not validate HTTP/2 request headers, triggering unexpected application behavior, as applications may presume that header values exposed through the Servlet API would be valid." ],
  "affected_release" : [ {
    "product_name" : "Red Hat JBoss Web Server 7.0.0",
    "release_date" : "2026-07-14T00:00:00Z",
    "advisory" : "RHSA-2026:39189",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:7.0",
    "package" : "tomcat-coyote"
  }, {
    "product_name" : "Red Hat JBoss Web Server 7.0 on RHEL 10",
    "release_date" : "2026-07-14T00:00:00Z",
    "advisory" : "RHSA-2026:39188",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el10",
    "package" : "jws7-tomcat-0:11.0.21-5.redhat_00004.1.el10jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 7.0 on RHEL 8",
    "release_date" : "2026-07-14T00:00:00Z",
    "advisory" : "RHSA-2026:39188",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el8",
    "package" : "jws7-tomcat-0:11.0.21-5.redhat_00004.1.el8jws"
  }, {
    "product_name" : "Red Hat JBoss Web Server 7.0 on RHEL 9",
    "release_date" : "2026-07-14T00:00:00Z",
    "advisory" : "RHSA-2026:39188",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:7.0::el9",
    "package" : "jws7-tomcat-0:11.0.21-5.redhat_00004.1.el9jws"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "tomcat9",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Affected",
    "package_name" : "tomcat6",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Affected",
    "package_name" : "pki-deps:10.6/pki-servlet-engine",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "pki-servlet-engine",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "tomcat",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "fix_state" : "Not affected",
    "package_name" : "tomcat10",
    "cpe" : "cpe:/a:redhat:hummingbird:1"
  }, {
    "product_name" : "Red Hat Hardened Images",
    "fix_state" : "Not affected",
    "package_name" : "tomcat11",
    "cpe" : "cpe:/a:redhat:hummingbird:1"
  }, {
    "product_name" : "Red Hat JBoss Web Server 5",
    "fix_state" : "Under investigation",
    "package_name" : "jws5-tomcat",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:5"
  }, {
    "product_name" : "Red Hat JBoss Web Server 6",
    "fix_state" : "Affected",
    "package_name" : "tomcat-coyote",
    "cpe" : "cpe:/a:redhat:jboss_enterprise_web_server:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-41293\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-41293\nhttps://lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r" ],
  "name" : "CVE-2026-41293",
  "csaw" : false
}