{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41293","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-04-20T10:26:28.623Z","datePublished":"2026-05-12T15:19:35.179Z","dateUpdated":"2026-05-14T19:54:07.534Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Apache Tomcat","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"11.0.21","status":"affected","version":"11.0.0-M1","versionType":"semver"},{"lessThanOrEqual":"10.1.54","status":"affected","version":"10.1.0-M1","versionType":"semver"},{"lessThanOrEqual":"9.0.117","status":"affected","version":"9.0.0.M1","versionType":"semver"},{"lessThanOrEqual":"10.0.27","status":"affected","version":"10.0.0-M1","versionType":"semver"},{"lessThanOrEqual":"8.5.100","status":"affected","version":"8.5.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Dawit Jeong (@dawitngoliath)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Improper Input Validation vulnerability in Apache Tomcat.</p><p>This 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.<br>Older, end of support versions may also be affected.</p><p>Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.</p>"}],"value":"Improper Input Validation vulnerability in Apache Tomcat.\n\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.\n\nUsers are recommended to upgrade to version [FIXED_VERSION], which fixes the issue."}],"metrics":[{"other":{"content":{"text":"low"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-05-12T15:19:35.179Z"},"references":[{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r"}],"source":{"discovery":"EXTERNAL"},"title":"Apache Tomcat: HTTP/2 request headers not validated","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/12/13"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-05-12T17:40:57.407Z"}},{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-14T16:40:13.006509Z","id":"CVE-2026-41293","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-14T19:54:07.534Z"}}]}}