CVE-2026-85220

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

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

The full cvelistV5 record. Download as CVE-2026-85220.json.

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              "content": {
                "id": "CVE-2026-85220",
                "options": [
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                    "Exploitation": "none"
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T14:36:45.444422Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "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",
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            },
            {
              "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"
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            {
              "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"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Teddy Thobane (rootkiTed)"
        }
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      "datePublic": "2026-09-21T13:02:00.000Z",
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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              "value": "<pre>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.</pre>"
            }
          ],
          "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"
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          "format": "CVSS",
          "scenarios": [
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              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770 Allocation of resources without limits or throttling",
              "lang": "en",
              "type": "CWE"
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        "dateUpdated": "2026-09-21T13:13:53.053Z",
        "orgId": "0f2be0ad-3469-4e56-b38f-4eb96719b425",
        "shortName": "ThinkstAppliedResearch"
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      "references": [
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          "url": "https://canary.tools/security-advisories/tc-2026-01.txt"
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      "solutions": [
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              "value": "<pre>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\n</pre><br>"
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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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              "value": "<ol><li>Disable the Redis service</li></ol>"
            }
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          "value": "*  Disable the Redis service"
        }
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    "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"
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  "dataVersion": "5.2"
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