{"id":"UBUNTU-CVE-2023-45539","details":"HAProxy before 2.8.2 accepts # as part of the URI component, which might allow remote attackers to obtain sensitive information or have unspecified other impact upon misinterpretation of a path_end rule, such as routing index.html#.png to a static server.","modified":"2026-01-30T01:27:41.628418Z","published":"2023-12-04T00:00:00Z","related":["USN-6530-1","USN-6530-2"],"upstream":["CVE-2023-45539"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45539"},{"type":"REPORT","url":"https://lists.w3.org/Archives/Public/ietf-http-wg/2023JulSep/0070.html"},{"type":"REPORT","url":"https://www.mail-archive.com/haproxy%40formilux.org/msg43861.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6530-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-45539"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6530-2"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/haproxy@1.6.3-1ubuntu0.3+esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.3-1ubuntu0.3+esm1"}]}],"versions":["1.5.14-1","1.5.15-1","1.6.2-1","1.6.2-2","1.6.2-2ubuntu1","1.6.2-2ubuntu3","1.6.3-1","1.6.3-1ubuntu0.1","1.6.3-1ubuntu0.2","1.6.3-1ubuntu0.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"1.6.3-1ubuntu0.3+esm1","binary_name":"haproxy"},{"binary_name":"vim-haproxy","binary_version":"1.6.3-1ubuntu0.3+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45539.json"}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/haproxy@1.8.8-1ubuntu0.13+esm2?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.8-1ubuntu0.13+esm2"}]}],"versions":["1.7.9-1ubuntu1","1.7.9-1ubuntu2","1.8.4-1","1.8.7-1","1.8.8-1","1.8.8-1ubuntu0.1","1.8.8-1ubuntu0.2","1.8.8-1ubuntu0.3","1.8.8-1ubuntu0.4","1.8.8-1ubuntu0.6","1.8.8-1ubuntu0.7","1.8.8-1ubuntu0.8","1.8.8-1ubuntu0.9","1.8.8-1ubuntu0.10","1.8.8-1ubuntu0.11","1.8.8-1ubuntu0.13"],"ecosystem_specific":{"binaries":[{"binary_name":"haproxy","binary_version":"1.8.8-1ubuntu0.13+esm2"},{"binary_name":"vim-haproxy","binary_version":"1.8.8-1ubuntu0.13+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45539.json"}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.0.31-0ubuntu0.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.31-0ubuntu0.3"}]}],"versions":["2.0.5-1","2.0.8-1","2.0.9-1","2.0.10-1","2.0.10-1ubuntu1","2.0.11-1ubuntu1","2.0.12-1ubuntu2","2.0.13-1ubuntu2","2.0.13-2","2.0.13-2ubuntu0.1","2.0.13-2ubuntu0.2","2.0.13-2ubuntu0.3","2.0.13-2ubuntu0.5","2.0.29-0ubuntu1","2.0.29-0ubuntu1.1","2.0.29-0ubuntu1.3","2.0.31-0ubuntu0.1","2.0.31-0ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.0.31-0ubuntu0.3"},{"binary_name":"vim-haproxy","binary_version":"2.0.31-0ubuntu0.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45539.json"}},{"package":{"name":"haproxy","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.4.22-0ubuntu0.22.04.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.22-0ubuntu0.22.04.3"}]}],"versions":["2.2.9-2ubuntu2","2.4.8-1","2.4.8-2ubuntu3","2.4.11-1ubuntu1","2.4.12-1ubuntu1","2.4.12-1ubuntu2","2.4.13-1ubuntu1","2.4.14-1ubuntu1","2.4.18-0ubuntu1","2.4.18-0ubuntu1.1","2.4.18-0ubuntu1.2","2.4.18-0ubuntu1.3","2.4.22-0ubuntu0.22.04.1","2.4.22-0ubuntu0.22.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"haproxy","binary_version":"2.4.22-0ubuntu0.22.04.3"},{"binary_name":"vim-haproxy","binary_version":"2.4.22-0ubuntu0.22.04.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45539.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}