CVE-2026-31934

{
  "id": "CVE-2026-31934",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-02T15:16:37.440",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Suricata is a network IDS, IPS and NSM engine. From version 8.0.0 to before version 8.0.4, there is a quadratic complexity issue when searching for URLs in mime encoded messages over SMTP leading to a performance impact. This issue has been patched in version 8.0.4."
    },
    {
      "lang": "es",
      "value": "Suricata es un motor de red IDS, IPS y NSM. Desde la versión 8.0.0 hasta antes de la versión 8.0.4, existe un problema de complejidad cuadrática al buscar URLs en mensajes codificados en MIME a través de SMTP, lo que lleva a un impacto en el rendimiento. Este problema ha sido parcheado en la versión 8.0.4."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "OISF",
          "product": "suricata",
          "versions": [
            {
              "version": ">= 8.0.0, < 8.0.4",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-02T15:00:40.229823Z",
          "id": "CVE-2026-31934",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-407"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.0.0",
              "versionEndExcluding": "8.0.4",
              "matchCriteriaId": "F35C5A48-CA30-43B3-9E53-D3E51C862604"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/OISF/suricata/security/advisories/GHSA-hr89-h2pp-f3c8",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://redmine.openinfosecfoundation.org/issues/8292",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
      ]
    }
  ]
}