Vulnerability-Lookup

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

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.

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 CNA under the mitre root

CNA scorecard – unranked: 7 records in the last 180 days, 10 needed details

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version	CPE status
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)	guessed

Date Public

2026-09-21 13:02

Credits

Teddy Thobane (rootkiTed)

Show details on NVD website

JSON

To clipboard

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        "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"
    }
  }
}

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

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"
    }
  ]
}

GHSA-X7VX-QH4Q-FG6X

Vulnerability from github – Published: 2026-09-21 15:32 – Updated: 2026-09-21 15:32

Details

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.

Severity

3.7 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-85220"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-21T14:17:22Z",
    "severity": "LOW"
  },
  "details": "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": "GHSA-x7vx-qh4q-fg6x",
  "modified": "2026-09-21T15:32:03Z",
  "published": "2026-09-21T15:32:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85220"
    },
    {
      "type": "WEB",
      "url": "https://canary.tools/security-advisories/tc-2026-01.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

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

FKIE_CVE-2026-85220

GHSA-X7VX-QH4Q-FG6X

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour