{"id":"UBUNTU-CVE-2020-1957","details":"Apache Shiro before 1.5.2, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.","modified":"2026-02-04T03:44:00.433235Z","published":"2020-03-25T16:15:00Z","related":["USN-4740-1"],"upstream":["CVE-2020-1957"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-1957"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/03/23/2"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/r17f371fc89d34df2d0c8131473fbc68154290e1be238895648f5a1e6%40%3Cdev.shiro.apache.org%3E"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/rc64fb2336683feff3580c3c3a8b28e80525077621089641f2f386b63@%3Ccommits.camel.apache.org%3E"},{"type":"REPORT","url":"https://github.com/apache/shiro/pull/203#issuecomment-605442534"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4740-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-1957"}],"affected":[{"package":{"name":"shiro","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/shiro@1.2.4-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.4-1","1.2.4-1ubuntu0.1~esm1","1.2.4-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libshiro-java","binary_version":"1.2.4-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1957.json"}},{"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":{"availability":"No subscription required","binaries":[{"binary_name":"libshiro-java","binary_version":"1.3.2-3~18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1957.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":{"availability":"No subscription required","binaries":[{"binary_name":"libshiro-java","binary_version":"1.3.2-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1957.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:H/A:H"},{"type":"Ubuntu","score":"medium"}]}