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CVE-2026-88831 Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths

🗓️ 23 Sep 2026 17:45:23Reported by redhatType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

BusyBox httpd fail open when IP deny rules contain invalid CIDR prefix lengths.

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-88831
23 Sep 202617:45
cve
euvd
EUVD
EUVD-2026-85509
23 Sep 202617:45
euvd
nvd
NVD
CVE-2026-88831
23 Sep 202618:17
nvd
redhatcve
RedhatCVE
CVE-2026-88831
23 Sep 202617:45
redhatcve
vulnrichment
Vulnrichment
CVE-2026-88831 Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths
23 Sep 202617:45
vulnrichment
[
  {
    "vendor": "Red Hat",
    "product": "Red Hat Hardened Images",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "busybox",
    "defaultStatus": "affected",
    "cpes": [
      "cpe:/a:redhat:hummingbird:1"
    ]
  }
]

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23 Sep 2026 17:45Current
CVSS 3.15.3
SSVC
4