Medium severity5.3NVD Advisory· Published Sep 23, 2026· Updated Sep 23, 2026
CVE-2026-88831
CVE-2026-88831
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.
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Affected products
1Patches
Vulnerability mechanics
References
2News mentions
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