{"id":"CVE-2020-27836","aliases":["EUVD-2020-20335"],"status":"published","description":"A flaw was found in cluster-ingress-operator. A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability..","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":0.01277,"percentile":0.70205,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2022-08-22T14:43:37Z","modified":"2026-06-17T03:09:42Z","products":[{"vendor":"redhat","product":"openshift_container_platform"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1906267","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1905490","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Permissions Required","Vendor Advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2020-27836","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://github.com/openshift/cluster-ingress-operator/pull/507/commits/92c83f281ba5fb6a1d91ecc3beaa4bcf2647a729","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]}],"sources":{"cve":[{"id":"CVE-2020-27836","description":"A flaw was found in cluster-ingress-operator. A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability..","status":"published","published":"2022-08-22T14:43:37Z","modified":"2024-08-04T16:25:43.135Z","cwes":["CWE-732"],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-20335","description":"A flaw was found in cluster-ingress-operator. A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability..","status":"published","published":"2022-08-22T14:43:37Z","modified":"2024-08-04T16:25:43Z","updated_at":"2026-11-03T03:07:11.950168Z"}],"nvd":[{"id":"CVE-2020-27836","description":"A flaw was found in cluster-ingress-operator. A change to how the router-default service allows only certain IP source ranges could allow an attacker to access resources that would otherwise be restricted to specified IP ranges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability..","status":"published","published":"2022-08-22T15:15:12.8Z","modified":"2026-06-17T03:09:42.66Z","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"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:06:46.951463Z"}]}}