{"id":"USN-5069-1","summary":"libapache2-mod-auth-mellon vulnerability","details":"It was discovered that mod-auth-mellon incorrectly filtered certain URLs.\nA remote attacker could possibly use this issue to perform an open redirect\nattack.\n","modified":"2026-04-27T15:55:04.487057Z","published":"2021-09-08T11:46:56Z","related":["UBUNTU-CVE-2021-3639"],"upstream":["CVE-2021-3639","UBUNTU-CVE-2021-3639"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5069-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3639"}],"affected":[{"package":{"name":"libapache2-mod-auth-mellon","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libapache2-mod-auth-mellon@0.13.1-1ubuntu0.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.13.1-1ubuntu0.3"}]}],"versions":["0.13.1-1","0.13.1-1build1","0.13.1-1build2","0.13.1-1ubuntu0.1","0.13.1-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.13.1-1ubuntu0.3","binary_name":"libapache2-mod-auth-mellon"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-3639"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5069-1.json"}},{"package":{"name":"libapache2-mod-auth-mellon","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libapache2-mod-auth-mellon@0.16.0-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.16.0-1ubuntu0.1"}]}],"versions":["0.14.2-1ubuntu1","0.14.2-1ubuntu2","0.16.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.16.0-1ubuntu0.1","binary_name":"libapache2-mod-auth-mellon"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2021-3639"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5069-1.json"}}],"schema_version":"1.7.5"}