CVE-2026-11859

{
  "id": "CVE-2026-11859",
  "sourceIdentifier": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
  "published": "2026-06-10T12:16:25.067",
  "lastModified": "2026-10-26T11:10:00.157",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An HTML injection vulnerability in the \"fetch links\" email sent by Thinkst Applied Research Canarytokens, enabling Interface Manipulation, Cross-Site Scripting (XSS) in emails clients that render HTML emails.\n\n\nThis issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de inyección HTML en el correo electrónico ’fetch links’ enviado por Thinkst Applied Research Canarytokens, lo que permite la manipulación de la interfaz, cross-site scripting (XSS) en clientes de correo electrónico que renderizan correos electrónicos HTML.\n\nEste problema afecta a Canarytokens: desde la etiqueta de Docker sha-c0f3cf142 anterior a sha-08c3f93d, desde el commit de Git c0f3cf142 anterior a 08c3f93d."
    }
  ],
  "affected": [
    {
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
      "affectedData": [
        {
          "vendor": "Thinkst Applied Research",
          "product": "Canarytokens",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "sha-c0f3cf142",
              "lessThan": "sha-08c3f93d",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "c0f3cf142",
              "lessThan": "08c3f93d",
              "versionType": "git",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/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:N/R:X/V:X/RE:L/U:Green",
          "baseScore": 2.0,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "ACTIVE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "LOW",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NO",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "LOW",
          "providerUrgency": "GREEN"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-10T14:35:29.304220Z",
          "id": "CVE-2026-11859",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/thinkst/canarytokens/security/advisories/GHSA-55jf-cqr9-r7p4",
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425"
    }
  ]
}