{"id":"CVE-2024-34750","state":"PUBLISHED","title":"Apache Tomcat: HTTP/2 excess header handling DoS","description":"Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. This led to a miscounting of active HTTP/2 streams which in turn led to the use of an incorrect infinite timeout which allowed connections to remain open which should have been closed.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, from 9.0.0-M1 through 9.0.89.\n\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 though 8.5.100. Other EOL versions may also be affected.\n\n\nUsers are recommended to upgrade to version 11.0.0-M21, 10.1.25 or 9.0.90, which fixes the issue.","publishedAt":"2024-07-03T19:32:34.695Z","updatedAt":"2025-11-03T19:29:53.932Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Tomcat"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","defaultStatus":"unaffected","versions":[{"version":"11.0.0-M1","status":"affected","lessThanOrEqual":"11.0.0-M20","versionType":"semver"},{"version":"10.1.0-M1","status":"affected","lessThanOrEqual":"10.1.24","versionType":"semver"},{"version":"9.0.0-M1","status":"affected","lessThanOrEqual":"9.0.89","versionType":"semver"},{"version":"8.5.0","status":"affected","lessThanOrEqual":"8.5.100","versionType":"semver"},{"version":"10.0.0-M1","status":"unknown","lessThanOrEqual":"10.0.27","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/4kqf0bc9gxymjc2x7v3p7dvplnl77y8l","https://security.netapp.com/advisory/ntap-20240816-0004/","https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html"],"weaknesses":["CWE-755","CWE-400"],"ingestedAt":"2026-10-29T20:07:30.303Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/34xxx/CVE-2024-34750.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-34750","state":"PUBLISHED","datePublished":"2024-07-03T19:32:34.695Z","dateUpdated":"2025-11-03T19:29:53.932Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2024-05-08T07:23:16.760Z"},"containers":{"cna":{"title":"Apache Tomcat: HTTP/2 excess header handling DoS","descriptions":[{"lang":"en","value":"Improper Handling of Exceptional Conditions, Uncontrolled Resource Consumption vulnerability in Apache Tomcat. When processing an HTTP/2 stream, Tomcat did not handle some cases of excessive HTTP headers correctly. 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