{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-88041","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-09-09T20:29:03.987Z","datePublished":"2026-10-20T13:43:28.681Z","dateUpdated":"2026-10-20T18:10:05.285Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-10-20T13:43:28.681Z"},"title":"Apache Tomcat: HTTP/2 trailer header cross-contamination","problemTypes":[{"descriptions":[{"description":"CWE-459 Incomplete cleanup","lang":"en","cweId":"CWE-459","type":"CWE"}]}],"source":{"discovery":"EXTERNAL"},"affected":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","versions":[{"status":"affected","version":"11.0.0-M23","lessThanOrEqual":"11.0.26","versionType":"semver"},{"status":"affected","version":"10.1.27","lessThanOrEqual":"10.1.60","versionType":"semver"},{"status":"affected","version":"9.0.92","lessThanOrEqual":"9.0.122","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"value":"Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.\n\n\n\nUsers are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.","lang":"en","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>Incomplete cleanup vulnerability in Apache Tomcat allowed an trailer information from a previous request to leak into a subsequent request.</p><p>This issue affects Apache Tomcat: from 11.0.0-M23 through 11.0.26, from 10.1.27 through 10.1.60, from 9.0.92 through 9.0.122.</p><p>Users are recommended to upgrade to version 11.0.27, 10.1.61 or 9.0.123, which fix the issue.</p>"}]}],"references":[{"url":"https://lists.apache.org/thread.html/dnmm9l3byytg3l66nk1jrqfrl7jty7n1","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"low"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"credits":[{"lang":"en","value":"Wentao He","type":"finder"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/20/24"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-10-20T18:10:05.285Z"}}]}}