{"id":"UBUNTU-CVE-2021-39241","details":"An issue was discovered in HAProxy 2.0 before 2.0.24, 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. An HTTP method name may contain a space followed by the name of a protected resource. It is possible that a server would interpret this as a request for that protected resource, such as in the \"GET /admin? HTTP/1.1 /static/images HTTP/1.1\" example.","modified":"2026-01-30T02:52:46.660145Z","published":"2021-08-17T19:15:00Z","related":["USN-5042-1"],"upstream":["CVE-2021-39241"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-39241"},{"type":"REPORT","url":"https://www.mail-archive.com/haproxy@formilux.org/msg41041.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5042-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-39241"}],"affected":[{"package":{"name":"haproxy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/haproxy@2.0.13-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.13-2ubuntu0.2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"haproxy","binary_version":"2.0.13-2ubuntu0.2"},{"binary_name":"vim-haproxy","binary_version":"2.0.13-2ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39241.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:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}