{"id":"UBUNTU-CVE-2026-49975","details":"Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.","modified":"2026-08-20T23:45:00.230752087Z","published":"2026-06-03T00:00:00Z","related":["USN-8384-1","USN-8398-1","USN-8398-2","USN-8398-3","USN-8398-4","USN-8571-1"],"upstream":["CVE-2026-49975"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49975"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49975"},{"type":"REPORT","url":"https://blog.calif.io/p/codex-discovered-a-hidden-http2-bomb"},{"type":"REPORT","url":"https://github.com/icing/mod_h2/pull/324"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8384-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8398-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8398-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8398-3"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8571-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8398-4"}],"affected":[{"package":{"name":"nginx","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/nginx?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.6-1ubuntu3.9+esm8"}]}],"versions":["1.4.1-3ubuntu1","1.4.3-2ubuntu1","1.4.4-1ubuntu1","1.4.4-2ubuntu1","1.4.4-4ubuntu1","1.4.5-1ubuntu1","1.4.6-1ubuntu2","1.4.6-1ubuntu3","1.4.6-1ubuntu3.1","1.4.6-1ubuntu3.2","1.4.6-1ubuntu3.3","1.4.6-1ubuntu3.4","1.4.6-1ubuntu3.5","1.4.6-1ubuntu3.6","1.4.6-1ubuntu3.7","1.4.6-1ubuntu3.8","1.4.6-1ubuntu3.9","1.4.6-1ubuntu3.9+esm1","1.4.6-1ubuntu3.9+esm2","1.4.6-1ubuntu3.9+esm3","1.4.6-1ubuntu3.9+esm4","1.4.6-1ubuntu3.9+esm5","1.4.6-1ubuntu3.9+esm6"],"ecosystem_specific":{"binaries":[{"binary_name":"nginx","binary_version":"1.4.6-1ubuntu3.9+esm8"},{"binary_version":"1.4.6-1ubuntu3.9+esm8","binary_name":"nginx-common"},{"binary_name":"nginx-core","binary_version":"1.4.6-1ubuntu3.9+esm8"},{"binary_name":"nginx-extras","binary_version":"1.4.6-1ubuntu3.9+esm8"},{"binary_version":"1.4.6-1ubuntu3.9+esm8","binary_name":"nginx-full"},{"binary_name":"nginx-light","binary_version":"1.4.6-1ubuntu3.9+esm8"},{"binary_name":"nginx-naxsi","binary_version":"1.4.6-1ubuntu3.9+esm8"},{"binary_version":"1.4.6-1ubuntu3.9+esm8","binary_name":"nginx-naxsi-ui"}],"availability":"Available 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