{"id":"USN-5551-1","summary":"mod-wsgi vulnerability","details":"It was discovered that mod-wsgi did not correctly remove the X-Client-IP\nheader when processing requests from untrusted proxies. A remote attacker\ncould use this issue to pass the header to WSGI applications, contrary\nto expectations.\n","modified":"2026-02-10T04:42:43Z","published":"2022-08-04T16:17:14Z","related":["UBUNTU-CVE-2022-2255"],"upstream":["CVE-2022-2255","UBUNTU-CVE-2022-2255"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5551-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2255"}],"affected":[{"package":{"name":"mod-wsgi","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mod-wsgi@4.5.17-1ubuntu1.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.17-1ubuntu1.1"}]}],"versions":["4.5.17-1","4.5.17-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.5.17-1ubuntu1.1","binary_name":"libapache2-mod-wsgi"},{"binary_version":"4.5.17-1ubuntu1.1","binary_name":"libapache2-mod-wsgi-py3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-2255"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5551-1.json"}},{"package":{"name":"mod-wsgi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mod-wsgi@4.6.8-1ubuntu3.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.8-1ubuntu3.1"}]}],"versions":["4.6.5-1","4.6.8-0ubuntu1","4.6.8-1","4.6.8-1build1","4.6.8-1ubuntu1","4.6.8-1ubuntu2","4.6.8-1ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"4.6.8-1ubuntu3.1","binary_name":"libapache2-mod-wsgi"},{"binary_version":"4.6.8-1ubuntu3.1","binary_name":"libapache2-mod-wsgi-py3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-2255"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5551-1.json"}},{"package":{"name":"mod-wsgi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mod-wsgi@4.9.0-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.0-1ubuntu0.1"}]}],"versions":["4.7.1-3build2","4.9.0-1","4.9.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.9.0-1ubuntu0.1","binary_name":"libapache2-mod-wsgi-py3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2022-2255"}],"ecosystem":"Ubuntu:22.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5551-1.json"}}],"schema_version":"1.7.3"}