{"id":"CVE-2025-48989","published":"2025-08-13T12:11:26Z","modified":"2026-05-12T12:08:14Z","title":"Apache Tomcat: h2 DoS - Made You Reset","vendor":"Apache","product":"Apache Tomcat","tier":"tail","description":{"text":"Improper Resource Shutdown or Release vulnerability in Apache Tomcat made Tomcat vulnerable to the made you reset attack.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43 and from 9.0.0.M1 through 9.0.107. Older, EOL versions may also be affected.\n\nUsers are recommended to upgrade to one of versions 11.0.10, 10.1.44 or 9.0.108 which fix the issue.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.03686,"percentile":0.89679,"provenance":"source"},"cwes":[{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"references":[{"url":"https://lists.apache.org/thread/9ydfg0xr0tchmglcprhxgwhj0hfwxlyf","tags":["vendor-advisory"]},{"url":"https://www.kb.cert.org/vuls/id/767506","tags":[]},{"url":"http://www.openwall.com/lists/oss-security/2025/08/13/2","tags":[]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html","tags":[]}],"priority":{"score":23.2,"factors":[{"name":"EPSS percentile","points":17.94},{"name":"CVSS severity","points":5.25}]},"vendorSlug":"apache","affectedVersions":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","versions":[">= 11.0.0-M1, <= 11.0.9",">= 10.1.0-M1, <= 10.1.43",">= 9.0.0.M1, <= 9.0.107"]}],"affected":[{"ecosystem":"Maven","package":"org.apache.tomcat:tomcat-coyote","vulnerableRanges":[">=11.0.0-M1, <11.0.10",">=10.1.0-M1, <10.1.44",">=9.0.0.M1, <9.0.108"],"patched":["11.0.10","10.1.44","9.0.108"],"from":["GHSA-gqp3-2cvr-x8m3"],"provenance":"source"},{"ecosystem":"Maven","package":"org.apache.tomcat.embed:tomcat-embed-core","vulnerableRanges":[">=11.0.0-M1, <11.0.10",">=10.1.0-M1, <10.1.44",">=9.0.0.M1, <9.0.108"],"patched":["11.0.10","10.1.44","9.0.108"],"from":["GHSA-gqp3-2cvr-x8m3"],"provenance":"source"}],"euvd":{"id":"EUVD-2025-24559","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-apache-tomcat-cve-2017-7675","parents":[{"from":"CVE-2020-13943","to":"CVE-2025-48989","relation":"related","confidence":"medium","kind":"lineage","evidence":[{"kind":"same-code","provenance":"machine","files":["java/org/apache/coyote/http2/Http2UpgradeHandler.java"],"commits":["https://github.com/apache/tomcat/commit/1bbc650cbc3f08d85a1ec6d803c47ae53a84f3bb","https://github.com/apache/tomcat/commit/55911430df13f8c9998fbdee1f9716994d2db59b","https://github.com/apache/tomcat/commit/73c04a10395774bda71a0b37802cf983662ce255","https://github.com/apache/tomcat/commit/f362c8eb3b8ec5b7f312f7f5610731c0fb299a06"],"basis":"shared function","functions":["headersContinue"]}]},{"from":"CVE-2024-34750","to":"CVE-2025-48989","relation":"related","confidence":"medium","kind":"lineage","evidence":[{"kind":"same-code","provenance":"machine","files":["java/org/apache/coyote/http2/Http2AsyncUpgradeHandler.java"],"commits":["https://github.com/apache/tomcat/commit/2344a4c0d03e307ba6b8ab6dc8b894cc8bac63f2","https://github.com/apache/tomcat/commit/2afae300c9ac9c0e516e2e9de580847d925365c3","https://github.com/apache/tomcat/commit/73c04a10395774bda71a0b37802cf983662ce255","https://github.com/apache/tomcat/commit/f362c8eb3b8ec5b7f312f7f5610731c0fb299a06"],"basis":"shared function","functions":["sendStreamReset"]}]}],"packageHistory":[{"cve":"CVE-2025-55668","published":"2025-08-13","fixed":"11.0.8","kev":false},{"cve":"CVE-2025-52520","published":"2025-07-10","fixed":"11.0.9","kev":false},{"cve":"CVE-2025-53506","published":"2025-07-10","fixed":"11.0.9","kev":false,"link":{"from":"CVE-2025-53506","to":"CVE-2025-48989","relation":"successor","confidence":"high","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.107","toFixed":"9.0.108","daysApart":34},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"10.1.43","toFixed":"10.1.44","daysApart":34},{"kind":"same-code","provenance":"machine","files":["java/org/apache/coyote/http2/Http2UpgradeHandler.java"],"commits":["https://github.com/apache/tomcat/commit/73c04a10395774bda71a0b37802cf983662ce255","https://github.com/apache/tomcat/commit/f362c8eb3b8ec5b7f312f7f5610731c0fb299a06","https://github.com/apache/tomcat/commit/2aa6261276ebe50b99276953591e3a2be7898bdb","https://github.com/apache/tomcat/commit/434772930f362145516dd60681134e7f0cf8115b"],"basis":"shared file"}]}},{"cve":"CVE-2025-48989","published":"2025-08-13","fixed":"11.0.10","kev":false},{"cve":"CVE-2025-55752","published":"2025-10-27","fixed":"11.0.11","kev":false,"link":{"from":"CVE-2025-48989","to":"CVE-2025-55752","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.108","toFixed":"9.0.109","daysApart":75},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"10.1.44","toFixed":"10.1.45","daysApart":75}]}},{"cve":"CVE-2025-55754","published":"2025-10-27","fixed":"11.0.11","kev":false,"link":{"from":"CVE-2025-48989","to":"CVE-2025-55754","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"9.0.108","toFixed":"9.0.109","daysApart":75},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat.embed:tomcat-embed-core","fromFixed":"10.1.44","toFixed":"10.1.45","daysApart":75}]}},{"cve":"CVE-2025-61795","published":"2025-10-27","fixed":"11.0.12","kev":false},{"cve":"CVE-2025-66614","published":"2026-02-17","fixed":"11.0.15","kev":false,"link":{"from":"CVE-2025-48989","to":"CVE-2025-66614","relation":"successor","confidence":"low","kind":"sequence","evidence":[{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat:tomcat-coyote","fromFixed":"9.0.108","toFixed":"9.0.113","daysApart":188},{"kind":"version-step","provenance":"source","package":"Maven:org.apache.tomcat:tomcat-coyote","fromFixed":"10.1.44","toFixed":"10.1.50","daysApart":188}]}}],"package":"Maven:org.apache.tomcat.embed:tomcat-embed-core"}}