{"id":"CVE-2012-2126","aliases":["DEBIAN-CVE-2012-2126","EUVD-2022-2619","GHSA-5mgj-mvv8-46mw","RHSA-2013:1203","RHSA-2013:1441","RHSA-2013:1852","UBUNTU-CVE-2012-2126"],"status":"published","title":"RubyGems does not verify SSL certificate","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01362,"percentile":0.71933,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-310"],"published":"2012-04-20T00:00:00Z","modified":"2026-10-23T17:47:49Z","fixes":[{"ecosystem":"RubyGems","package":"rubygems-update","fixed_in":["1.8.23"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"rubygems","fixed_in":["1.8.24-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rubygems","fixed_in":["1.8.24-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rubygems","fixed_in":["1.8.24-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"rubygems-update","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.23"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.24-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.24-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.24-1"}]}]},{"source":"osv","ecosystem":"RubyGems","package":"rubygems-update","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.23"}]}],"versions":["0.8.10","0.8.11","0.8.3","0.8.4","0.8.5","0.8.6","0.8.8","0.9.0","0.9.1","0.9.2","0.9.3","0.9.4","0.9.5","1.0.0","1.0.1","1.1.0","1.1.1","1.2.0","1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.3.6","1.3.7","1.4.0","1.4.1","1.4.2","1.5.0","1.5.2","1.5.3","1.6.0","1.6.1","1.6.2","1.7.0","1.7.1","1.7.2","1.8.0","1.8.1","1.8.10","1.8.11","1.8.12","1.8.13","1.8.14","1.8.15","1.8.16","1.8.17","1.8.18","1.8.19","1.8.2","1.8.20","1.8.21","1.8.22","1.8.3","1.8.4","1.8.5","1.8.6","1.8.7","1.8.8","1.8.9"]},{"source":"osv","ecosystem":"Red Hat:openshift:1.2::el6","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.8.24-4.el6op"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.3.7-4.el6_4"}]}],"bundled":3},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.3.7-4.el6_4"}]}],"bundled":3},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.3.7-4.el6_4"}]}],"bundled":3},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.3.7-4.el6_4"}]}],"bundled":3},{"source":"osv","ecosystem":"Red Hat:enterprise_mrg:2:computenode:el6","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.8.23.2-1.el6"}]}],"bundled":7},{"source":"osv","ecosystem":"Red Hat:enterprise_mrg:2:server:el6","package":"cumin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.1.5787-4.el6"}]}],"bundled":7},{"source":"osv","ecosystem":"Red Hat:enterprise_mrg:2:server:el6","package":"rubygems","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.8.23.2-1.el6"}]}],"bundled":7},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"jruby","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-5ubuntu1","1.5.6-6","1.5.6-7","1.5.6-9+deb8u2build0.14.04.1~esm2"]}],"products":[{"vendor":"rubygems","product":"rubygems"}],"references":[{"url":"http://secunia.com/advisories/55381","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-1582-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://github.com/rubygems/rubygems/blob/1.8/History.txt","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix","web","report"]},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1203.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=814718","tags":["x_refsource_MISC","x_transferred","report","web"]},{"url":"http://www.openwall.com/lists/oss-security/2012/04/20/24","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1852.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory","web"]},{"url":"http://rhn.redhat.com/errata/RHSA-2013-1441.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2126","tags":["advisory"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rubygems-update/CVE-2012-2126.yml","tags":["web"]},{"url":"https://github.com/rubygems/rubygems/commit/d4c7eafb8efe1e13a7abf5be5a5b4548870b15b7","tags":["web"]},{"url":"https://github.com/advisories/GHSA-5mgj-mvv8-46mw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2012-2126","tags":["advisory"]},{"url":"https://github.com/rubygems/rubygems","tags":["package"]},{"url":"http://www.ubuntu.com/usn/USN-1582-1","tags":["web"]},{"url":"https://access.redhat.com/errata/RHSA-2013:1203","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_1203.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2125","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2125","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2125","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2126","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2126","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2013:1441","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1002364","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_1441.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-4287","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4287","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4287","tags":["advisory"]},{"url":"http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html","tags":["article"]},{"url":"https://access.redhat.com/errata/RHSA-2013:1852","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=995038","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=998561","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=998606","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1016263","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_1852.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-4404","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4404","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4404","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-4405","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4405","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4405","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-4414","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4414","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4414","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2013-4461","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2013-4461","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4461","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2012-2126","tags":["report"]},{"url":"http://www.openwall.com/lists/oss-security/2012/04/20","tags":["report"]},{"url":"http://www.ruby-lang.org/en/news/2012/04/20/ruby-1-9-3-p194-is-released/","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-1582-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1583-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2012-2126","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2013-10-01T17:00:00Z","modified":"2024-08-06T19:26:08.437Z","updated_at":"2026-11-02T14:34:49.937255Z"}],"euvd":[{"id":"EUVD-2022-2619","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2013-10-01T17:00:00Z","modified":"2024-08-06T19:26:08Z","updated_at":"2026-11-03T01:56:14.86717Z"}],"ghsa":[{"id":"GHSA-5mgj-mvv8-46mw","title":"RubyGems does not verify SSL certificate","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2022-05-17T04:54:47Z","modified":"2023-05-04T21:15:27Z","updated_at":"2026-11-02T14:36:52.310293Z"}],"nvd":[{"id":"CVE-2012-2126","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2013-10-01T17:55:03.367Z","modified":"2026-06-16T23:41:02.613Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:17.375282Z"}],"osv":[{"id":"CVE-2012-2126","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2013-10-01T17:55:03Z","modified":"2026-04-10T03:43:09.977784Z","updated_at":"2026-11-02T15:43:58.537032Z"},{"id":"DEBIAN-CVE-2012-2126","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2013-10-01T17:55:03.367Z","modified":"2026-10-23T17:47:49.823646001Z","updated_at":"2026-11-02T15:45:24.92418Z"},{"id":"GHSA-5mgj-mvv8-46mw","title":"RubyGems does not verify SSL certificate","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2022-05-17T04:54:47Z","modified":"2024-12-02T05:43:07.385148Z","updated_at":"2026-11-02T15:46:38.553953Z"},{"id":"RHSA-2013:1203","title":"Red Hat Security Advisory: rubygems security update","status":"published","published":"2024-09-13T08:02:35Z","modified":"2026-01-29T10:55:26.044646Z","updated_at":"2026-11-02T15:53:01.993625Z"},{"id":"RHSA-2013:1441","title":"Red Hat Security Advisory: rubygems security update","status":"published","published":"2024-09-13T08:26:43Z","modified":"2026-06-29T10:05:49Z","updated_at":"2026-11-02T15:53:01.993625Z"},{"id":"RHSA-2013:1852","title":"Red Hat Security Advisory: Red Hat Enterprise MRG Grid 2.4 security update","status":"published","published":"2024-09-13T08:27:44Z","modified":"2026-06-29T10:06:08Z","updated_at":"2026-11-02T15:53:01.993625Z"},{"id":"UBUNTU-CVE-2012-2126","description":"RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.","status":"published","published":"2012-04-20T00:00:00Z","modified":"2026-02-04T04:01:16.264932Z","updated_at":"2026-11-02T15:54:06.395274Z"}]}}