{"id":"CVE-2019-16377","aliases":["EUVD-2019-0660","GHSA-8jhx-9gf4-hhf5"],"status":"published","title":"Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly","description":"The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02643,"percentile":0.85718,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2019-09-23T15:08:39Z","modified":"2026-11-03T02:45:08Z","fixes":[{"ecosystem":"RubyGems","package":"consul","fixed_in":["1.0.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.3"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"consul","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.3"}]}],"versions":["0.1.0","0.1.1","0.1.2","0.10.0","0.10.1","0.10.2","0.11.0","0.11.1","0.11.2","0.12.0","0.12.1","0.12.2","0.12.3","0.12.4","0.13.0","0.13.1","0.13.2","0.14.0","0.14.1","0.2.0","0.2.1","0.2.2","0.2.3","0.3.0","0.4.0","0.4.1","0.4.2","0.5.0","0.6.0","0.6.1","0.7.0","0.8.0","0.9.0","0.9.1","1.0.0","1.0.1","1.0.2"]}],"products":[{"vendor":"makandra","product":"consul"}],"references":[{"url":"https://rubygems.org/gems/consul","tags":["x_refsource_MISC","x_transferred","Product","Third Party Advisory","advisory","web"]},{"url":"https://github.com/makandra/consul/issues/49","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16377","tags":["advisory"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/c26fbc13435b8be448ad59131428538049d165e4/gems/consul/CVE-2019-16377.yml","tags":["web"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/consul/CVE-2019-16377.yml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-8jhx-9gf4-hhf5"},{"url":"https://github.com/makandra/consul","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2019-16377","description":"The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.","status":"published","published":"2019-09-23T15:08:39Z","modified":"2024-08-05T01:17:39.423Z","updated_at":"2026-11-02T14:32:23.485011Z"}],"euvd":[{"id":"EUVD-2019-0660","description":"The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.","status":"published","published":"2019-09-23T15:08:39Z","modified":"2024-08-05T01:17:39Z","updated_at":"2026-11-03T02:40:33.179924Z"}],"ghsa":[{"id":"GHSA-8jhx-9gf4-hhf5","title":"Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly","description":"With the consul ruby gem before 1.0.3, if a controller checks multiple powers  using `:if` or `:except` conditions, these conditions are erroneously applied to all power checks in that controller. This can lead to skipped power checks and hence unauthenticated access to certain controller actions.","status":"published","published":"2019-09-27T20:01:00Z","modified":"2023-08-29T11:51:47Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:37:01.345964Z"}],"nvd":[{"id":"CVE-2019-16377","description":"The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.","status":"published","published":"2019-09-23T16:15:15.04Z","modified":"2026-06-17T02:22:11.957Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:28.126831Z"}],"osv":[{"id":"CVE-2019-16377","description":"The makandra consul gem through 1.0.2 for Ruby has Incorrect Access Control.","status":"published","published":"2019-09-23T16:15:15.04Z","modified":"2026-11-03T02:45:08.394310706Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T03:05:43.703218Z"},{"id":"GHSA-8jhx-9gf4-hhf5","title":"Consul gem insufficient authentication check - Multiple powers in one controller are not always checked correctly","description":"With the consul ruby gem before 1.0.3, if a controller checks multiple powers  using `:if` or `:except` conditions, these conditions are erroneously applied to all power checks in that controller. This can lead to skipped power checks and hence unauthenticated access to certain controller actions.","status":"published","published":"2019-09-27T20:01:00Z","modified":"2024-02-16T08:24:38.297974Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:46:42.437513Z"}]}}