{"id":"CVE-2026-88831","revision":"27ea65bfae8e4ad09afd5b56268ac825","records":[{"revision":"27ea65bfae8e4ad09afd5b56268ac825","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-88831","aliases":[],"title":"Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths","description":"BusyBox httpd IP deny rules with invalid CIDR prefix lengths fail open, leaving a parsed IP with a zeroed mask so the rule matches no clients.","state":0,"publishedAt":"2026-09-23T17:45:23.299+00:00","modifiedAt":"2026-09-25T22:28:19.246+00:00","affected":[{"ecosystem":"https://catalog.redhat.com/software/containers/","name":"busybox-main","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Hardened Images\",\n                    \"collectionURL\": \"https://catalog.redhat.com/software/containers/\",\n                    \"packageName\": \"busybox-main\",\n                    \"defaultStatus\": \"affected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.37.0-9.1.hum1\",\n                            \"lessThan\": \"*\",\n                            \"versionType\": \"rpm\",\n                            \"status\": \"unaffected\"\n                        }\n                    ],\n                    \"cpes\": [\n                        \"cpe:/a:redhat:hummingbird:1\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://access.redhat.com/errata/RHSA-2026:72111","https://access.redhat.com/security/cve/CVE-2026-88831","https://bugzilla.redhat.com/show_bug.cgi?id=2531346"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-88831","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-88831","identifiers":["CVE-2026-88831"]},"retained":false,"historicalAffected":[]}],"coverage":[]}