{"id":"CVE-2021-3660","aliases":["ALSA-2022:2008","DEBIAN-CVE-2021-3660","EUVD-2021-26955","GHSA-5m9v-2hhc-h2wj","MGASA-2021-0467","OESA-2021-1359","RHSA-2022:2008","RLSA-2022:2008","UBUNTU-CVE-2021-3660"],"status":"published","title":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to...","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01261,"percentile":0.70055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1021"],"published":"2021-09-30T11:04:37Z","modified":"2026-10-29T11:01:18Z","fixes":[{"ecosystem":"Debian:12","package":"cockpit","fixed_in":["254-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"cockpit","fixed_in":["254-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"cockpit","fixed_in":["254-1"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"cockpit","fixed_in":["254-1.mga8"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"cockpit","fixed_in":["178-9.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP2","package":"cockpit","fixed_in":["178-9.oe1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"AlmaLinux:8","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:8","package":"cockpit-bridge","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:8","package":"cockpit-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:8","package":"cockpit-system","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"AlmaLinux:8","package":"cockpit-ws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Debian:12","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"254-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"254-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"254-1"}]}]},{"source":"osv","ecosystem":"Mageia:8","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"254-1.mga8"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP1","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"178-9.oe1"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP2","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"178-9.oe1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-bridge","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-system","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:8::baseos","package":"cockpit-ws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Rocky Linux:8","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:264.1-1.el8"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["151-1","156-1","157-1","158-1","160-1","161-1","162-1","163-1","164-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"cockpit","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["202.1-1","204-1","206-1","207-1","208-1","210-1","211-1","212-1","213-1","214.1-1","215-1"]}],"products":[{"vendor":"cockpit-hq","product":"cockpit"},{"vendor":"cockpit-project","product":"cockpit"},{"vendor":"redhat","product":"enterprise_linux"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1980688","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/cockpit-project/cockpit/issues/16122","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/cockpit-project/cockpit/commit/8d9bc10d8128aae03dfde62fd00075fe492ead10","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3660","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2022:2008","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3660","tags":["report"]},{"url":"https://github.com/advisories/GHSA-5m9v-2hhc-h2wj"},{"url":"https://errata.almalinux.org/8/ALSA-2022-2008.html","tags":["advisory"]},{"url":"https://vulners.com/cve/CVE-2021-3660","tags":["report"]},{"url":"https://vulners.com/cve/CVE-2021-3698","tags":["report"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3660","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0467.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29518","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/XQLK6K2XNAT4GT54IRSTVXU2RMN6V3YB/","tags":["web"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1359","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.6_release_notes/","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1792270","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1992149","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2004041","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2008208","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2016998","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2018382","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2018384","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2018417","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2029982","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2056386","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_2008.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3660","tags":["advisory","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-3698","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3698","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3698","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2022:2008","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-3660","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-3660","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-07T13:59:18Z","modified":"2024-08-03T17:01:08.335Z","cwes":["CWE-1021"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-26955","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-07T13:59:18Z","modified":"2024-08-03T17:01:08Z","updated_at":"2026-11-03T03:25:11.953192Z"}],"ghsa":[{"id":"GHSA-5m9v-2hhc-h2wj","title":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to...","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-11T00:02:32Z","modified":"2023-02-10T05:05:55Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-1021"],"updated_at":"2026-11-02T14:54:00.189984Z"}],"nvd":[{"id":"CVE-2021-3660","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-10T17:42:55.647Z","modified":"2026-06-17T04:05:31.377Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"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-1021"],"updated_at":"2026-11-02T14:07:05.198719Z"}],"osv":[{"id":"CVE-2021-3660","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-10T17:42:55.647Z","modified":"2026-10-20T14:25:24.713926763Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:20.434873Z"},{"id":"DEBIAN-CVE-2021-3660","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-10T17:42:55.647Z","modified":"2026-10-23T18:03:16.688347614Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"RHSA-2022:2008","title":"Red Hat Security Advisory: cockpit security, bug fix, and enhancement update","status":"published","published":"2024-09-16T06:39:16Z","modified":"2025-11-22T12:33:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:09.62945Z"},{"id":"RLSA-2022:2008","title":"Moderate: cockpit security, bug fix, and enhancement update","description":"Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line sessions, and more.\n\nThe following packages have been upgraded to a later upstream version: cockpit (264.1). (BZ#1984902, BZ#1992620, BZ#2004041, BZ#2008208)\n\nSecurity Fix(es):\n\n* cockpit: authenticates with revoked certificates (CVE-2021-3698)\n\n* cockpit: pages vulnerable to clickjacking (CVE-2021-3660)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.6 Release Notes linked from the References section.","status":"published","published":"2022-05-10T06:44:59Z","modified":"2026-02-05T05:15:11.098097Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:24.322216Z"},{"id":"UBUNTU-CVE-2021-3660","description":"Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an \u003ciFrame\u003e HTML entry. This may be used by a malicious website in clickjacking or similar attacks.","status":"published","published":"2022-03-10T17:42:00Z","modified":"2025-10-24T04:49:54Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"ALSA-2022:2008","title":"Moderate: cockpit security, bug fix, and enhancement update","description":"Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line sessions, and more.\n\nThe following packages have been upgraded to a later upstream version: cockpit (264.1). (BZ#1984902, BZ#1992620, BZ#2004041, BZ#2008208)\n\nSecurity Fix(es):\n\n* cockpit: authenticates with revoked certificates (CVE-2021-3698)\n\n* cockpit: pages vulnerable to clickjacking (CVE-2021-3660)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2022-05-10T06:44:59Z","modified":"2026-10-29T11:01:18.768591581Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"MGASA-2021-0467","title":"Updated cockpit packages fix security vulnerability","description":"Restrict frame embedding to same origin\n","status":"published","published":"2021-10-06T19:41:56Z","modified":"2026-04-16T04:44:35.548032203Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"OESA-2021-1359","title":"cockpit security update","description":"Cockpit makes GNU/Linux discoverable. See Linux server in a web browser and perform system tasks with a mouse. It’s easy to start containers, administer storage, configure networks, and inspect logs with this package.\r\n\r\nSecurity Fix(es):\r\n\r\nCockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an HTML entry. This may be used by a malicious website in clickjacking or similar attacks.(CVE-2021-3660)","status":"published","published":"2021-09-30T11:04:37Z","modified":"2026-08-06T11:04:37Z","updated_at":"2026-11-02T15:52:38.987987Z"}]}}