FKIE_CVE-2026-1337

Vulnerability from fkie_nvd - Published: 2026-02-06 14:16 - Updated: 2026-08-28 16:08
Severity
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01. Proof of concept exploit:  https://github.com/JoakimBulow/CVE-2026-1337
References
3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6https://github.com/JoakimBulow/CVE-2026-1337Exploit, Third Party Advisory
Impacted products
Vendor Product Version
neo4j neo4j *
neo4j neo4j *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Enterprise Edition",
          "vendor": "neo4j",
          "versions": [
            {
              "lessThan": "2026.01.0",
              "status": "affected",
              "version": "0",
              "versionType": "date"
            }
          ]
        },
        {
          "collectionURL": "https://mvnrepository.com/artifact/org.neo4j/neo4j",
          "defaultStatus": "unaffected",
          "packageName": "pkg:maven/org.neo4j/neo4j",
          "product": "Community Edition",
          "repo": "https://github.com/neo4j/neo4j",
          "vendor": "neo4j",
          "versions": [
            {
              "lessThan": "2026.01.0",
              "status": "affected",
              "version": "0",
              "versionType": "date"
            }
          ]
        }
      ],
      "source": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:neo4j:neo4j:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "AD9BE335-FD8B-46AD-96A3-A99A08DEEA5B",
              "versionEndExcluding": "2026.01.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:neo4j:neo4j:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "2F778A27-E70A-4FDA-A7D0-A774D19BFC51",
              "versionEndExcluding": "2026.01.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01.\n\nProof of concept exploit:\u00a0 https://github.com/JoakimBulow/CVE-2026-1337"
    },
    {
      "lang": "es",
      "value": "El escape insuficiente de caracteres Unicode en el registro de consultas en las ediciones Neo4j Enterprise y Community anteriores a 2026.01 puede conducir a XSS si el usuario abre los registros en una herramienta que los trate como HTML. No hay impacto de seguridad en los productos Neo4j, pero este aviso se publica como precauci\u00f3n para tratar los registros como texto plano si se utilizan versiones anteriores a 2026.01.\n\nPrueba de concepto de exploit: https://github.com/JoakimBulow/CVE-2026-1337"
    }
  ],
  "id": "CVE-2026-1337",
  "lastModified": "2026-08-28T16:08:28.880",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.1,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-1337",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-06T14:29:47.736732Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-06T14:16:38.120",
  "references": [
    {
      "source": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/JoakimBulow/CVE-2026-1337"
    }
  ],
  "sourceIdentifier": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-117"
        }
      ],
      "source": "3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6",
      "type": "Secondary"
    }
  ]
}



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