{"id":"UBUNTU-CVE-2025-53629","details":"cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.23.0, incoming requests using Transfer-Encoding: chunked in the header can allocate memory arbitrarily in the server, potentially leading to its exhaustion. This vulnerability is fixed in 0.23.0. NOTE: This vulnerability is related to CVE-2025-53628.","modified":"2026-06-25T13:30:09.743821889Z","published":"2025-07-10T20:15:00Z","upstream":["CVE-2025-53629"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-53629"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-53629"},{"type":"REPORT","url":"https://github.com/yhirose/cpp-httplib/commit/17ba303889b8d4d719be3879a70639ab653efb99"},{"type":"REPORT","url":"https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-j6p8-779x-p5pw"},{"type":"REPORT","url":"https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-qjmq-h3cc-qv6w"}],"affected":[{"package":{"name":"cpp-httplib","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/cpp-httplib?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.9+ds-1","0.9.10+ds-1","0.10.1+ds-1","0.10.2+ds-1","0.10.3+ds-1","0.10.3+ds-1ubuntu0.1~esm1","0.10.3+ds-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10.3+ds-1ubuntu0.1~esm2","binary_name":"libcpp-httplib0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53629.json"}},{"package":{"name":"cpp-httplib","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/cpp-httplib?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13.1+ds-1ubuntu1","0.14.3+ds-1","0.14.3+ds-1.1","0.14.3+ds-1.1build1","0.14.3+ds-1.1build2","0.14.3+ds-1.1ubuntu0.1~esm1","0.14.3+ds-1.1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.14.3+ds-1.1ubuntu0.1~esm2","binary_name":"libcpp-httplib0.14t64"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53629.json"}},{"package":{"name":"cpp-httplib","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/cpp-httplib?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18.7-1","0.18.7-1ubuntu0.25.10.1","0.18.7-1ubuntu0.25.10.2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.18.7-1ubuntu0.25.10.2","binary_name":"libcpp-httplib0.18"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53629.json"}},{"package":{"name":"cpp-httplib","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/cpp-httplib?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.18.7-1","0.26.0+ds-2ubuntu2","0.26.0+ds-2ubuntu3","0.26.0+ds-2ubuntu3+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libcpp-httplib0.26","binary_version":"0.26.0+ds-2ubuntu3+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53629.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}