{"id":"CVE-2026-88831","published":"2026-09-23T18:17:10.080","lastModified":"2026-09-25T23:16:54.457","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.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-636"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:72111","tags":[]},{"url":"https://access.redhat.com/security/cve/CVE-2026-88831","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531346","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}