{"id":"CVE-2026-101356","title":"Apache Tomcat: HTTP/2 request/response mix-up after error during async processing","summary":"Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.22 through…","severity":"none","vendor":"Apache Software Foundation","product":"Apache Tomcat","affected":["apache_tomcat >= 11.0.22 <= 11.0.26","apache_tomcat >= 10.1.55 <= 10.1.60","apache_tomcat >= 9.0.118 <= 9.0.122"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T13:46:50.842Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101356","references":[{"url":"https://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T14:08:00.569Z","slug":"CVE-2026-101356","body":"## Overview\n\nIncorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous servlets can trigger request and/or response mix-up between users.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.22 through 11.0.26, from 10.1.55 through 10.1.60, from 9.0.118 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 fixes the issue.\n\n## Affected\n\n- `apache_tomcat >= 11.0.22 <= 11.0.26`\n- `apache_tomcat >= 10.1.55 <= 10.1.60`\n- `apache_tomcat >= 9.0.118 <= 9.0.122`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}