Vulnerability-Lookup

CVE-2026-33583 (GCVE-0-2026-33583)

Vulnerability from cvelistv5 – Published: 2026-05-13 18:19 – Updated: 2026-05-13 18:57

Title

Arqit SKA-Platform Vulnerable to Key Exposure

Summary

Exposure of the QKEY (used as input into the ‘OTA-Quantum’ device registration process) and internal system keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform. This issue affects Symmetric Key Agreement Platform: before 26.03.

Severity

8.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-13 18:57 UTC

CWE

CWE-749 - Exposed dangerous method or function

Assigner

ENISA ENISA root

References

1 reference

URL	Tags
https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
Arqit	Symmetric Key Agreement Platform	Affected: 0 , < 26.03 (semver)	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33583",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T18:57:23.168695Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T18:57:55.074Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Symmetric Key Agreement Platform",
          "vendor": "Arqit",
          "versions": [
            {
              "lessThan": "26.03",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\u003cp\u003eThis issue affects Symmetric Key Agreement Platform: before 26.03.\u003c/p\u003e"
            }
          ],
          "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\n\nThis issue affects Symmetric Key Agreement Platform: before 26.03."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-749",
              "description": "CWE-749 Exposed dangerous method or function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T18:19:34.651Z",
        "orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "shortName": "ENISA"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Arqit SKA-Platform Vulnerable to Key Exposure",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
    "assignerShortName": "ENISA",
    "cveId": "CVE-2026-33583",
    "datePublished": "2026-05-13T18:19:34.651Z",
    "dateReserved": "2026-03-23T12:53:47.473Z",
    "dateUpdated": "2026-05-13T18:57:55.074Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-33583",
      "date": "2026-09-17",
      "epss": "0.00208",
      "percentile": "0.1117"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33583\",\"sourceIdentifier\":\"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\",\"published\":\"2026-05-13T19:17:06.873\",\"lastModified\":\"2026-06-17T10:37:44.687\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Exposure of the QKEY (used as \\ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \\nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\\n\\nThis issue affects Symmetric Key Agreement Platform: before 26.03.\"}],\"affected\":[{\"source\":\"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\",\"affectedData\":[{\"vendor\":\"Arqit\",\"product\":\"Symmetric Key Agreement Platform\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"26.03\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N\",\"baseScore\":8.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":5.8}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-05-13T18:57:23.168695Z\",\"id\":\"CVE-2026-33583\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-749\"}]}],\"references\":[{\"url\":\"https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583\",\"source\":\"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\"}]}}",
    "redhat_vex": {
      "current_release_date": "2026-06-05T19:17:00+00:00",
      "cve": "CVE-2026-33583",
      "id": "CVE-2026-33583",
      "initial_release_date": "2026-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Arqit SKA-Platform Vulnerable to Key Exposure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33583.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\", \"shortName\": \"ENISA\", \"dateUpdated\": \"2026-05-13T18:19:34.651Z\"}, \"title\": \"Arqit SKA-Platform Vulnerable to Key Exposure\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-749\", \"description\": \"CWE-749 Exposed dangerous method or function\", \"type\": \"CWE\"}]}], \"affected\": [{\"vendor\": \"Arqit\", \"product\": \"Symmetric Key Agreement Platform\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"26.03\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Exposure of the QKEY (used as \\ninput into the \\u2018OTA-Quantum\\u2019 device registration process) and internal \\nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\\n\\nThis issue affects Symmetric Key Agreement Platform: before 26.03.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"Exposure of the QKEY (used as \\ninput into the \\u2018OTA-Quantum\\u2019 device registration process) and internal \\nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\u003cp\u003eThis issue affects Symmetric Key Agreement Platform: before 26.03.\u003c/p\u003e\"}]}], \"references\": [{\"url\": \"https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583\", \"tags\": [\"third-party-advisory\"]}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV3_1\": {\"version\": \"3.1\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\", \"baseSeverity\": \"HIGH\", \"baseScore\": 8.7, \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N\"}}], \"source\": {\"discovery\": \"UNKNOWN\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33583\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-13T18:57:23.168695Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-13T18:57:45.502Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33583\", \"assignerOrgId\": \"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"ENISA\", \"dateReserved\": \"2026-03-23T12:53:47.473Z\", \"datePublished\": \"2026-05-13T18:19:34.651Z\", \"dateUpdated\": \"2026-05-13T18:57:55.074Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-33583

Vulnerability from fkie_nvd - Published: 2026-05-13 19:17 - Updated: 2026-06-17 10:37

Severity

8.7 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Summary

References

	URL	Tags
	a6d3dc9e-0591-4a13-bce7-0f5b31ff6158	https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Symmetric Key Agreement Platform",
          "vendor": "Arqit",
          "versions": [
            {
              "lessThan": "26.03",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\n\nThis issue affects Symmetric Key Agreement Platform: before 26.03."
    }
  ],
  "id": "CVE-2026-33583",
  "lastModified": "2026-06-17T10:37:44.687",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.8,
        "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-33583",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-13T18:57:23.168695Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-13T19:17:06.873",
  "references": [
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583"
    }
  ],
  "sourceIdentifier": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-749"
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "type": "Secondary"
    }
  ]
}

GHSA-P8MH-JV2C-P65G

Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-05-13 21:32

Details

This issue affects Symmetric Key Agreement Platform: before 26.03.

Severity

8.7 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-33583"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-749"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-13T19:17:06Z",
    "severity": "HIGH"
  },
  "details": "Exposure of the QKEY (used as \ninput into the \u2018OTA-Quantum\u2019 device registration process) and internal \nsystem keys via an unauthenticated and unencrypted HTTP GET method in the Arqit Symmetric Key Agreement Platform.\n\nThis issue affects Symmetric Key Agreement Platform: before 26.03.",
  "id": "GHSA-p8mh-jv2c-p65g",
  "modified": "2026-05-13T21:32:05Z",
  "published": "2026-05-13T21:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33583"
    },
    {
      "type": "WEB",
      "url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-33583"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "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.

Detection rules are retrieved from Rulezet.

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-2026-33583 (GCVE-0-2026-33583)

FKIE_CVE-2026-33583

GHSA-P8MH-JV2C-P65G

Tags

Sightings

Nomenclature

Related by attack behaviour