{"schema_version":"1.9.0","id":"BIT-tomcat-2025-31650","published":"2025-04-30T05:56:04.703Z","modified":"2026-09-08T08:48:20.927700019Z","aliases":["CVE-2025-31650","GHSA-3p2h-wqq4-wf4h"],"summary":"Apache Tomcat: DoS via malformed HTTP/2 PRIORITY_UPDATE frame","details":"Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service.\n\nThis issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0 through 11.0.5.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.90 though 8.5.100.\n\n\nUsers are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.","affected":[{"package":{"name":"tomcat","ecosystem":"Bitnami","purl":"pkg:bitnami/tomcat"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.0.76"},{"fixed":"9.0.104"},{"introduced":"10.1.10"},{"fixed":"10.1.40"},{"introduced":"11.0.0"},{"fixed":"11.0.6"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/tomcat/BIT-tomcat-2025-31650.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2025/04/28/2"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/j6zzk0y3yym9pzfzkq5vcyxzz0yzh826"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31650"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html"}],"database_specific":{"cpes":["cpe:2.3:a:apache:tomcat:*:*:*:*:*:maven:*:*"],"severity":"High"}}