CVE-2026-11859 (GCVE-0-2026-11859)

Vulnerability from cvelistv5 – Published: 2026-06-10 11:35 – Updated: 2026-06-10 14:38
VLAI?
Title
HTML injection in the Canarytoken links email
Summary
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. This issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d.
Severity ?
2 (Low)
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/AU:N/RE:L/U:Green
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
Impacted products
Vendor Product Version
Thinkst Applied Research Canarytokens Affected: sha-c0f3cf142 , < sha-08c3f93d (custom)
Affected: c0f3cf142 , < 08c3f93d (git)
Create a notification for this product.
Credits
Arkadiusz Marta
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-11859",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-10T14:35:29.304220Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-10T14:38:21.778Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Canarytokens",
          "vendor": "Thinkst Applied Research",
          "versions": [
            {
              "lessThan": "sha-08c3f93d",
              "status": "affected",
              "version": "sha-c0f3cf142",
              "versionType": "custom"
            },
            {
              "lessThan": "08c3f93d",
              "status": "affected",
              "version": "c0f3cf142",
              "versionType": "git"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arkadiusz Marta"
        }
      ],
      "datePublic": "2026-06-10T10:36:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "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.\u003cdiv\u003e\u003cbr\u003e\u003cp\u003eThis issue affects Canarytokens: from Docker tag sha-c0f3cf142 before sha-08c3f93d, from Git commit c0f3cf142 before 08c3f93d.\u003c/p\u003e\u003c/div\u003e"
            }
          ],
          "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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-113",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-113 Interface Manipulation"
            }
          ]
        },
        {
          "capecId": "CAPEC-63",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-63 Cross-Site Scripting (XSS)"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NO",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 2,
            "baseSeverity": "LOW",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "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/AU:N/RE:L/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "LOW"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-10T11:35:14.974Z",
        "orgId": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
        "shortName": "ThinkstAppliedResearch"
      },
      "references": [
        {
          "url": "https://github.com/thinkst/canarytokens/security/advisories/GHSA-55jf-cqr9-r7p4"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Pull the latest Docker image:\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\u003ccode\u003e$\u0026nbsp;docker pull thinkst/canarytokens:latest\u003c/code\u003e\u003c/div\u003e"
            }
          ],
          "value": "Pull the latest Docker image:\n\n\n$\u00a0docker pull thinkst/canarytokens:latest"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "HTML injection in the Canarytoken links email",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
    "assignerShortName": "ThinkstAppliedResearch",
    "cveId": "CVE-2026-11859",
    "datePublished": "2026-06-10T11:35:14.974Z",
    "dateReserved": "2026-06-10T10:35:44.979Z",
    "dateUpdated": "2026-06-10T14:38:21.778Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.