FKIE_CVE-2026-114458

Vulnerability from fkie_nvd - Published: 2026-10-22 07:16 - Updated: 2026-10-22 17:21
Severity
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A flaw was found in mod_qos. An unauthenticated remote attacker can cause a Denial of Service (DoS) by maintaining numerous concurrent low-rate connections to a target server. When connection rate monitoring is active, the module fails to verify array boundaries when recording client IP addresses, allowing more connection records to be added than the allocated buffer can hold. This issue leads to heap memory corruption, which can crash the web server process.
References
patrick@puiterwijk.orghttps://access.redhat.com/security/cve/CVE-2026-114458
patrick@puiterwijk.orghttps://bugzilla.redhat.com/show_bug.cgi?id=2558393
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://svn.code.sf.net/p/mod-qos/source/",
          "defaultStatus": "unknown",
          "packageName": "mod_qos",
          "product": "mod_qos",
          "vendor": "pbuchbinder",
          "versions": [
            {
              "status": "affected",
              "version": "11.74",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.76",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.79",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "patrick@puiterwijk.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in mod_qos. An unauthenticated remote attacker can cause a Denial of Service (DoS) by maintaining numerous concurrent low-rate connections to a target server. When connection rate monitoring is active, the module fails to verify array boundaries when recording client IP addresses, allowing more connection records to be added than the allocated buffer can hold. This issue leads to heap memory corruption, which can crash the web server process."
    }
  ],
  "id": "CVE-2026-114458",
  "lastModified": "2026-10-22T17:21:57.293",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "patrick@puiterwijk.org",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-10-22T07:16:42.520",
  "references": [
    {
      "source": "patrick@puiterwijk.org",
      "url": "https://access.redhat.com/security/cve/CVE-2026-114458"
    },
    {
      "source": "patrick@puiterwijk.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558393"
    }
  ],
  "sourceIdentifier": "patrick@puiterwijk.org",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "patrick@puiterwijk.org",
      "type": "Secondary"
    }
  ]
}



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