{"id":"CVE-2020-1741","aliases":["EUVD-2020-12578","GHSA-wqfw-39gh-42cj","RHSA-2020:3541"],"status":"published","title":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive...","description":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00876,"percentile":0.59244,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-185","CWE-697"],"published":"2020-04-24T18:34:07Z","modified":"2026-08-08T10:01:49Z","affected":[{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"jenkins-2-plugins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.1597310986-1.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"openshift-ansible","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.272-1.git.0.79ab6e9.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"openshift-ansible-docs","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.272-1.git.0.79ab6e9.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"openshift-ansible-playbooks","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.272-1.git.0.79ab6e9.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"openshift-ansible-roles","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.272-1.git.0.79ab6e9.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"openshift-ansible-test","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:3.11.272-1.git.0.79ab6e9.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"jenkins","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.235.2.1597220898-1.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"python-rsa","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.5-2.el7"}]}],"bundled":10},{"source":"osv","ecosystem":"Red Hat:openshift:3.11::el7","package":"python2-rsa","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.5-2.el7"}]}],"bundled":10}],"products":[{"vendor":"red hat","product":"openshift-ansible"},{"vendor":"redhat","product":"openshift_container_platform"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1741","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1741","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2020:3541","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-1741","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1802381","tags":["report"]},{"url":"https://github.com/advisories/GHSA-wqfw-39gh-42cj"},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1819663","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1848507","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857425","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857427","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857431","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857433","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857436","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857439","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1857441","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3541.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2019-16541","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-16541","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-16541","tags":["advisory"]},{"url":"https://jenkins.io/security/advisory/2019-11-21/#SECURITY-1106","tags":["article"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-1741","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2220","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2220","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2220","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2221","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2221","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2221","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2222","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2222","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2222","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2223","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2223","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2223","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2224","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2224","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2224","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2225","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2225","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2225","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-2226","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-2226","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2226","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-13757","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-13757","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13757","tags":["advisory"]},{"url":"https://github.com/sybrenstuvel/python-rsa/issues/146","tags":["article"]}],"sources":{"cve":[{"id":"CVE-2020-1741","description":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.","status":"published","published":"2020-04-24T18:34:07Z","modified":"2024-08-04T06:46:30.884Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-185"],"updated_at":"2026-11-02T14:35:56.638833Z"}],"euvd":[{"id":"EUVD-2020-12578","description":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.","status":"published","published":"2020-04-24T18:34:07Z","modified":"2024-08-04T06:46:30Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T03:08:12.086746Z"}],"ghsa":[{"id":"GHSA-wqfw-39gh-42cj","title":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive...","description":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.","status":"published","published":"2022-05-24T17:16:26Z","modified":"2023-02-13T00:30:53Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium"}],"cwes":["CWE-185","CWE-697"],"updated_at":"2026-11-02T14:54:04.926808Z"}],"nvd":[{"id":"CVE-2020-1741","description":"A flaw was found in openshift-ansible. OpenShift Container Platform (OCP) 3.11 is too permissive in the way it specified CORS allowed origins during installation. An attacker, able to man-in-the-middle the connection between the user's browser and the openshift console, could use this flaw to perform a phishing attack. The main threat from this vulnerability is data confidentiality.","status":"published","published":"2020-04-24T19:15:12.88Z","modified":"2026-06-17T03:02:18.823Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-185","CWE-697"],"updated_at":"2026-11-02T14:05:59.718774Z"}],"osv":[{"id":"RHSA-2020:3541","title":"Red Hat Security Advisory: OpenShift Container Platform 3.11 security update","status":"published","published":"2024-09-16T04:42:09Z","modified":"2026-08-08T10:01:49Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:07.57369Z"}]}}