{"id":"CVE-2021-4047","aliases":["EUVD-2021-33944","GHSA-v3g6-gh83-x752","RHSA-2021:5002"],"status":"published","title":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch...","description":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00934,"percentile":0.61037,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2022-04-11T19:38:31Z","modified":"2026-06-17T04:18:57Z","fixes":[{"ecosystem":"Red Hat:openshift:4.9::el8","package":"haproxy","fixed_in":["0:2.2.15-3.el8"],"sources":["osv"]},{"ecosystem":"Red Hat:openshift:4.9::el8","package":"haproxy-debugsource","fixed_in":["0:2.2.15-3.el8"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Red Hat:openshift:4.9::el8","package":"haproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.2.15-3.el8"}]}]},{"source":"osv","ecosystem":"Red Hat:openshift:4.9::el8","package":"haproxy-debugsource","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.2.15-3.el8"}]}]}],"products":[{"vendor":"redhat","product":"openshift"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027881","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4047","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2021:5002","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2021-4047","tags":["report"]},{"url":"https://github.com/advisories/GHSA-v3g6-gh83-x752"},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_5002.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-4047","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-4047","description":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.","status":"published","published":"2022-04-11T19:38:31Z","modified":"2024-08-03T17:16:03.305Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-33944","description":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.","status":"published","published":"2022-04-11T19:38:31Z","modified":"2024-08-03T17:16:03Z","updated_at":"2026-11-03T03:25:10.888157Z"}],"ghsa":[{"id":"GHSA-v3g6-gh83-x752","title":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch...","description":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.","status":"published","published":"2022-04-12T00:00:32Z","modified":"2023-02-13T00:30:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:54:04.926808Z"}],"nvd":[{"id":"CVE-2021-4047","description":"The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.","status":"published","published":"2022-04-11T20:15:16.437Z","modified":"2026-06-17T04:18:57.127Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:07:05.581807Z"}],"osv":[{"id":"RHSA-2021:5002","title":"Red Hat Security Advisory: OpenShift Container Platform 4.9.11 security update","status":"published","published":"2024-09-16T06:57:40Z","modified":"2025-11-22T12:28:01Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:53:09.077222Z"}]}}