{"id":"USN-8470-1","summary":"cpp-httplib vulnerability","details":"It was discovered that cpp-httplib incorrectly percent-decoded HTTP\nrequest header values. A remote attacker could use this to inject crafted\nheader content possibly leading to response splitting, log injection\nor proxy smuggling.","modified":"2026-06-25T19:19:14.373046226Z","published":"2026-06-25T07:53:24Z","related":["UBUNTU-CVE-2026-45372"],"upstream":["CVE-2026-45372","UBUNTU-CVE-2026-45372"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8470-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-45372"}],"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"},{"fixed":"0.10.3+ds-1ubuntu0.1~esm2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10.3+ds-1ubuntu0.1~esm2","binary_name":"libcpp-httplib0"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:22.04:LTS","cves":[{"id":"CVE-2026-45372","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8470-1.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"},{"fixed":"0.14.3+ds-1.1ubuntu0.1~esm2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"libcpp-httplib0.14t64","binary_version":"0.14.3+ds-1.1ubuntu0.1~esm2"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-45372"}],"ecosystem":"Ubuntu:Pro:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8470-1.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"},{"fixed":"0.18.7-1ubuntu0.25.10.2"}]}],"versions":["0.18.7-1","0.18.7-1ubuntu0.25.10.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libcpp-httplib0.18","binary_version":"0.18.7-1ubuntu0.25.10.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:25.10","cves":[{"id":"CVE-2026-45372","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8470-1.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"},{"fixed":"0.26.0+ds-2ubuntu3+esm1"}]}],"versions":["0.18.7-1","0.26.0+ds-2ubuntu2","0.26.0+ds-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"libcpp-httplib0.26","binary_version":"0.26.0+ds-2ubuntu3+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8470-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:26.04:LTS","cves":[{"id":"CVE-2026-45372","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}]}}}],"schema_version":"1.7.5"}