FKIE_CVE-2026-0398

Vulnerability from fkie_nvd - Published: 2026-02-09 15:16 - Updated: 2026-04-20 14:55
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
References
security@open-xchange.comhttps://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.htmlVendor Advisory
Impacted products
Vendor Product Version
powerdns recursor *
powerdns recursor *
powerdns recursor *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "BCD53D74-E38B-4113-A5FD-880E7EA4EFA3",
              "versionEndExcluding": "5.1.10",
              "versionStartIncluding": "5.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "707F72F2-1B2F-4DFA-8421-DBDF47980A36",
              "versionEndExcluding": "5.2.8",
              "versionStartIncluding": "5.2.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE3FB5B9-EB60-473D-9C9D-39787C08BA1B",
              "versionEndExcluding": "5.3.5",
              "versionStartIncluding": "5.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor."
    },
    {
      "lang": "es",
      "value": "Zonas manipuladas pueden llevar a un mayor uso de recursos y cadenas CNAME manipuladas pueden llevar a envenenamiento de cach\u00e9 en Recursor."
    }
  ],
  "id": "CVE-2026-0398",
  "lastModified": "2026-04-20T14:55:46.507",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@open-xchange.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-09T15:16:11.360",
  "references": [
    {
      "source": "security@open-xchange.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html"
    }
  ],
  "sourceIdentifier": "security@open-xchange.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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Detection rules are retrieved from Rulezet.