CVE-2026-88831 — Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths
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.
Published: 2026-09-23 · CVSS: 5.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7