{"id":"UBUNTU-CVE-2016-11086","details":"lib/oauth/consumer.rb in the oauth-ruby gem through 0.5.4 for Ruby does not verify server X.509 certificates if a certificate bundle cannot be found, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information.","modified":"2026-05-20T16:03:13.350947188Z","published":"2020-09-24T20:15:00Z","upstream":["CVE-2016-11086"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-11086"},{"type":"REPORT","url":"https://github.com/oauth-xx/oauth-ruby/issues/137"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-11086"}],"affected":[{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.7-3"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.4.7-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.4-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.4-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.4-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}},{"package":{"name":"ruby-oauth","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/ruby-oauth?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.4-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-oauth","binary_version":"0.5.4-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-11086.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}