5.3

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerRed Hat
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Produkt Red Hat Hardened Images
Default Statusaffected
Version 1.37.0-9.1.hum1
Version < *
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.093
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-636 Not Failing Securely ('Failing Open')

When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions.

https://access.redhat.com/security/cve/CVE-2026-88831
https://bugzilla.redhat.com/show_bug.cgi?id=2531346
https://access.redhat.com/errata/RHSA-2026:72111