{"identifier":"CVE-2026-101356","cve":{"id":"CVE-2026-101356","description":"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 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.","published":"2026-10-20T14:16:55.767000+00:00","modified":"2026-10-20T19:35:38.940000+00:00","status":"Awaiting Analysis","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cvss_version":"3.1","affected":[],"weaknesses":["CWE-362"],"references":[{"url":"https://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27","source":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/20/27","source":"af854a3a-2127-422b-91ae-364da2661108"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":9.1,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-20T18:17:35.437643Z","id":"CVE-2026-101356","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[],"source":"nvd","retrieved_at":"2026-10-28T10:24:01.015468+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Critical technical severity","reasons":["CVSS is at least 9.0; exploitation is not established by severity alone."]},"epss":{"probability":0.00499,"percentile":0.42681,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"lists.apache.org","source_url":"https://lists.apache.org/thread.html/d1xjt7bbjqw7y7n5mcb4fm815hpfgc27","investigate_url":"https://investigate.aeglixmind.com/#lists.apache.org"},{"domain":"www.openwall.com","source_url":"http://www.openwall.com/lists/oss-security/2026/10/20/27","investigate_url":"https://investigate.aeglixmind.com/#www.openwall.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-101356","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-101356","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-101356","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}