Vulnerability-Lookup

FKIE_CVE-2026-85220

Vulnerability from fkie_nvd - Published: 2026-09-21 14:17 - Updated: 2026-09-22 19:41

Severity

3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Summary

A vulnerability in the Thinkst Canary honeypot Redis service allows an unauthenticated remote attacker to execute a Denial-of-Service attack against the honeypot. The vulnerability is accessible when the Redis service is enabled only. The Canary is NOT affected if the Redis service is disabled. Thinkst has addressed this issue on all supported platforms. New update files to address this issue are available on all platforms except Docker. For Docker customers, a new Docker image has been published which includes the patch. Customers with automatic updates enabled already have updates in distribution. If automatic updates are disabled, customers are advised to update their Canaries. Workarounds are available for customers unable to update at this time.

References

	URL	Tags
	0f2be0ad-3469-4e56-b38f-4eb96719b425	https://canary.tools/security-advisories/tc-2026-01.txt

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Canary",
          "vendor": "Thinkst Applied Research",
          "versions": [
            {
              "status": "unaffected",
              "version": "5.1.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.2.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.3.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.4.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.5.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.6.4",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.7.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.8.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.9.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.10.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.11.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Thinkst Canary honeypot Redis service allows an unauthenticated remote attacker to execute a Denial-of-Service attack against the honeypot.\n\nThe vulnerability is accessible when the Redis service is enabled only.\n\nThe Canary is NOT affected if the Redis service is disabled.\n\nThinkst has addressed this issue on all supported platforms.\n\nNew update files to address this issue are available on all platforms except Docker. For Docker customers, a new Docker image has been published which includes the patch. Customers with automatic updates enabled already have updates in distribution. If automatic updates are disabled, customers are advised to update their Canaries.\n\nWorkarounds are available for customers unable to update at this time."
    }
  ],
  "id": "CVE-2026-85220",
  "lastModified": "2026-09-22T19:41:38.447",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4,
        "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-85220",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-21T14:36:45.444422Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-21T14:17:22.007",
  "references": [
    {
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
      "url": "https://canary.tools/security-advisories/tc-2026-01.txt"
    }
  ],
  "sourceIdentifier": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
      "type": "Secondary"
    }
  ]
}

CVE-2026-85220 (GCVE-0-2026-85220)

Vulnerability from cvelistv5 – Published: 2026-09-21 13:13 – Updated: 2026-09-21 14:48

Title

Denial-of-Service in the Thinkst Canary Redis service

Summary

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-21 14:36 UTC

CWE

CWE-770 - Allocation of resources without limits or throttling

Assigner

ThinkstAppliedResearch mitre root

References

1 reference

URL	Tags
https://canary.tools/security-advisories/tc-2026-01.txt

Impacted products

1 product

Vendor	Product	Version
Thinkst Applied Research	Canary	Unaffected: 5.1.2 (custom) Unaffected: 5.2.2 (custom) Unaffected: 5.3.2 (custom) Unaffected: 5.4.2 (custom) Unaffected: 5.5.2 (custom) Unaffected: 5.6.4 (custom) Unaffected: 5.7.2 (custom) Unaffected: 5.8.2 (custom) Unaffected: 5.9.2 (custom) Unaffected: 5.10.2 (custom) Unaffected: 5.11.2 (custom)

Date Public

2026-09-21 13:02

Credits

Teddy Thobane (rootkiTed)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-85220",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T14:36:45.444422Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-21T14:48:17.169Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Canary",
          "vendor": "Thinkst Applied Research",
          "versions": [
            {
              "status": "unaffected",
              "version": "5.1.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.2.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.3.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.4.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.5.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.6.4",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.7.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.8.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.9.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.10.2",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "5.11.2",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Teddy Thobane (rootkiTed)"
        }
      ],
      "datePublic": "2026-09-21T13:02:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "\u003cpre\u003eA vulnerability in the Thinkst Canary honeypot Redis service allows an unauthenticated remote attacker to execute a Denial-of-Service attack against the honeypot.\n\nThe vulnerability is accessible when the Redis service is enabled only.\n\nThe Canary is NOT affected if the Redis service is disabled.\n\nThinkst has addressed this issue on all supported platforms.\n\nNew update files to address this issue are available on all platforms except Docker. For Docker customers, a new Docker image has been published which includes the patch. Customers with automatic updates enabled already have updates in distribution. If automatic updates are disabled, customers are advised to update their Canaries.\n\nWorkarounds are available for customers unable to update at this time.\u003c/pre\u003e"
            }
          ],
          "value": "A vulnerability in the Thinkst Canary honeypot Redis service allows an unauthenticated remote attacker to execute a Denial-of-Service attack against the honeypot.\n\nThe vulnerability is accessible when the Redis service is enabled only.\n\nThe Canary is NOT affected if the Redis service is disabled.\n\nThinkst has addressed this issue on all supported platforms.\n\nNew update files to address this issue are available on all platforms except Docker. For Docker customers, a new Docker image has been published which includes the patch. Customers with automatic updates enabled already have updates in distribution. If automatic updates are disabled, customers are advised to update their Canaries.\n\nWorkarounds are available for customers unable to update at this time."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770 Allocation of resources without limits or throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-21T13:13:53.053Z",
        "orgId": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
        "shortName": "ThinkstAppliedResearch"
      },
      "references": [
        {
          "url": "https://canary.tools/security-advisories/tc-2026-01.txt"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cpre\u003eCanary is available across multiple platforms, each with its own version number. The table below shows the first affected and patched versions for all Canary platforms.\n\n\nPlatform          | First Vulnerable Canary Release | First Fixed Canary Release\n------------------+---------------------------------+----------------------------\nAWS EC2           | 2.0.2                           | 5.3.2\nDocker            | 3.7.1                           | 5.7.2\nGCP               | 2.2.3                           | 5.4.2\nHardware          | 1.0                             | 5.1.2\nMicrosoft Azure   | 2.2.9                           | 5.6.4\nMicrosoft Hyper-V | 2.3.2                           | 5.5.2\nNutanix           | 4.9.0                           | 5.9.2\nOCI               | 3.11.10                         | 5.11.2\nOpenStack         | 3.8.9                           | 5.8.2\nTailscale         | 2.2.1                           | 5.3.2\nVMware ESXi       | 2.0.2                           | 5.2.2\n\u003c/pre\u003e\u003cbr\u003e"
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          ],
          "value": "Canary is available across multiple platforms, each with its own version number. The table below shows the first affected and patched versions for all Canary platforms.\n\n\nPlatform          | First Vulnerable Canary Release | First Fixed Canary Release\n------------------+---------------------------------+----------------------------\nAWS EC2           | 2.0.2                           | 5.3.2\nDocker            | 3.7.1                           | 5.7.2\nGCP               | 2.2.3                           | 5.4.2\nHardware          | 1.0                             | 5.1.2\nMicrosoft Azure   | 2.2.9                           | 5.6.4\nMicrosoft Hyper-V | 2.3.2                           | 5.5.2\nNutanix           | 4.9.0                           | 5.9.2\nOCI               | 3.11.10                         | 5.11.2\nOpenStack         | 3.8.9                           | 5.8.2\nTailscale         | 2.2.1                           | 5.3.2\nVMware ESXi       | 2.0.2                           | 5.2.2"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Denial-of-Service in the Thinkst Canary Redis service",
      "workarounds": [
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              "base64": false,
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              "value": "\u003col\u003e\u003cli\u003eDisable the Redis service\u003c/li\u003e\u003c/ol\u003e"
            }
          ],
          "value": "*  Disable the Redis service"
        }
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  "cveMetadata": {
    "assignerOrgId": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
    "assignerShortName": "ThinkstAppliedResearch",
    "cveId": "CVE-2026-85220",
    "datePublished": "2026-09-21T13:13:53.053Z",
    "dateReserved": "2026-09-03T14:08:21.464Z",
    "dateUpdated": "2026-09-21T14:48:17.169Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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FKIE_CVE-2026-85220

CVE-2026-85220 (GCVE-0-2026-85220)

Tags

Sightings

Nomenclature

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