{"id":"USN-4740-1","summary":"shiro vulnerabilities","details":"It was discovered that Apache Shiro mishandled specially crafted requests. An\nattacker could use this vulnerability to bypass authentication mechanisms.\n","modified":"2026-04-27T15:48:52.556725Z","published":"2021-02-18T20:35:46Z","related":["UBUNTU-CVE-2020-11989","UBUNTU-CVE-2020-1957"],"upstream":["CVE-2020-11989","CVE-2020-1957","UBUNTU-CVE-2020-11989","UBUNTU-CVE-2020-1957"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4740-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-1957"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-11989"}],"affected":[{"package":{"name":"shiro","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/shiro@1.3.2-3~18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-3~18.04.1"}]}],"versions":["1.3.2-2","1.3.2-3~18.04"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.2-3~18.04.1","binary_name":"libshiro-java"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-1957","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-11989","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4740-1.json"}},{"package":{"name":"shiro","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/shiro@1.3.2-4ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.2-4ubuntu0.1"}]}],"versions":["1.3.2-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3.2-4ubuntu0.1","binary_name":"libshiro-java"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-1957","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-11989","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4740-1.json"}}],"schema_version":"1.7.5"}