Vulnerability-Lookup

CVE-2026-7723 (GCVE-0-2026-7723)

Vulnerability from cvelistv5 – Published: 2026-05-04 02:30 – Updated: 2026-05-04 21:17 X_Open Source

Title

PrefectHQ prefect WebSocket Endpoint in missing authentication

Summary

A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

7.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-04 11:33 UTC

CWE

CWE-306 - Missing Authentication
CWE-287 - Improper Authentication

Assigner

VulDB CNA under the mitre root

CNA scorecard B 82/100 over 3904 records in the last 180 days details

References

8 references

URL	Tags
https://vuldb.com/vuln/360899	vdb-entry
https://vuldb.com/vuln/360899/cti	signaturepermissions-required
https://vuldb.com/submit/807256	third-party-advisory
https://gist.github.com/nedlir/f1ab8aa038aafbcc6b…	exploit
https://github.com/PrefectHQ/prefect/pull/20372	issue-trackingpatch
https://github.com/PrefectHQ/prefect/commit/f8afe…	patch
https://github.com/PrefectHQ/prefect/releases/tag…	patch
https://github.com/PrefectHQ/prefect/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
PrefectHQ	prefect	Affected: 3.6.0 Affected: 3.6.1 Affected: 3.6.2 Affected: 3.6.3 Affected: 3.6.4 Affected: 3.6.5 Affected: 3.6.6 Affected: 3.6.7 Affected: 3.6.8 Affected: 3.6.9 Affected: 3.6.10 Affected: 3.6.11 Affected: 3.6.12 Affected: 3.6.13 Unaffected: 3.6.14 cpe:2.3:a:prefect:prefect::::::::

Credits

nedlir (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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            {
              "lang": "en",
              "value": "A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 6.9,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 7.3,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 7.3,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 7.5,
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-306",
                  "description": "Missing Authentication",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-287",
                  "description": "Improper Authentication",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-04T21:17:54.417Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-360899 | PrefectHQ prefect WebSocket Endpoint in missing authentication",
              "tags": [
                "vdb-entry"
              ],
              "url": "https://vuldb.com/vuln/360899"
            },
            {
              "name": "VDB-360899 | CTI Indicators (IOB, IOC, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/360899/cti"
            },
            {
              "name": "Submit #807256 | PerfectHQ Perfect \u003c=3.6.13 Missing Critical Step in Authentication",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/807256"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f"
            },
            {
              "tags": [
                "issue-tracking",
                "patch"
              ],
              "url": "https://github.com/PrefectHQ/prefect/pull/20372"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.14"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://github.com/PrefectHQ/prefect/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-05-03T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-05-03T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-05-04T23:22:28.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "PrefectHQ prefect WebSocket Endpoint in missing authentication"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-7723",
        "datePublished": "2026-05-04T02:30:18.099Z",
        "dateReserved": "2026-05-03T09:18:16.724Z",
        "dateUpdated": "2026-05-04T21:17:54.417Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-7723

Vulnerability from fkie_nvd - Published: 2026-05-04 03:16 - Updated: 2026-06-17 11:02

Severity

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Summary

References

	URL	Tags
	cna@vuldb.com	https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f
	cna@vuldb.com	https://github.com/PrefectHQ/prefect/
	cna@vuldb.com	https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6
	cna@vuldb.com	https://github.com/PrefectHQ/prefect/pull/20372
	cna@vuldb.com	https://github.com/PrefectHQ/prefect/releases/tag/3.6.14
	cna@vuldb.com	https://vuldb.com/submit/807256
	cna@vuldb.com	https://vuldb.com/vuln/360899
	cna@vuldb.com	https://vuldb.com/vuln/360899/cti

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "WebSocket Endpoint"
          ],
          "product": "prefect",
          "vendor": "PrefectHQ",
          "versions": [
            {
              "status": "affected",
              "version": "3.6.0"
            },
            {
              "status": "affected",
              "version": "3.6.1"
            },
            {
              "status": "affected",
              "version": "3.6.2"
            },
            {
              "status": "affected",
              "version": "3.6.3"
            },
            {
              "status": "affected",
              "version": "3.6.4"
            },
            {
              "status": "affected",
              "version": "3.6.5"
            },
            {
              "status": "affected",
              "version": "3.6.6"
            },
            {
              "status": "affected",
              "version": "3.6.7"
            },
            {
              "status": "affected",
              "version": "3.6.8"
            },
            {
              "status": "affected",
              "version": "3.6.9"
            },
            {
              "status": "affected",
              "version": "3.6.10"
            },
            {
              "status": "affected",
              "version": "3.6.11"
            },
            {
              "status": "affected",
              "version": "3.6.12"
            },
            {
              "status": "affected",
              "version": "3.6.13"
            },
            {
              "status": "unaffected",
              "version": "3.6.14"
            }
          ]
        }
      ],
      "source": "cna@vuldb.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called f8afecadf88ea5f73694dafa3a365b9d8fae1ad6. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product."
    }
  ],
  "id": "CVE-2026-7723",
  "lastModified": "2026-06-17T11:02:52.297",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "cna@vuldb.com",
        "type": "Secondary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "cna@vuldb.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-7723",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-04T11:33:53.101447Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-04T03:16:13.143",
  "references": [
    {
      "source": "cna@vuldb.com",
      "url": "https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/PrefectHQ/prefect/"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/PrefectHQ/prefect/pull/20372"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.14"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/submit/807256"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/360899"
    },
    {
      "source": "cna@vuldb.com",
      "url": "https://vuldb.com/vuln/360899/cti"
    }
  ],
  "sourceIdentifier": "cna@vuldb.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        },
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ],
      "source": "cna@vuldb.com",
      "type": "Secondary"
    }
  ]
}

GHSA-HVPH-5985-R63V

Vulnerability from github – Published: 2026-05-04 03:31 – Updated: 2026-05-22 13:06

Summary

Prefect Unauthenticated Event Injection via /api/events/in WebSocket

Details

A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called 0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40. It is recommended to upgrade the affected component.

Severity

7.3 (High)


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

5.5 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "prefect"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-7723"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-22T13:06:48Z",
    "nvd_published_at": "2026-05-04T03:16:13Z",
    "severity": "MODERATE"
  },
  "details": "A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called 0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40. It is recommended to upgrade the affected component.",
  "id": "GHSA-hvph-5985-r63v",
  "modified": "2026-05-22T13:06:48Z",
  "published": "2026-05-04T03:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7723"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/pull/20372"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/commit/0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PrefectHQ/prefect"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.14"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/807256"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/360899"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/360899/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Prefect Unauthenticated Event Injection via /api/events/in WebSocket"
}

PYSEC-2026-2958

Vulnerability from pysec - Published: 2026-07-13 15:02 - Updated: 2026-07-13 16:05

Details

A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called 0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40. It is recommended to upgrade the affected component.

Severity

7.3 (High)


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

5.5 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Impacted products

Name	purl
prefect	pkg:pypi/prefect

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "prefect",
        "purl": "pkg:pypi/prefect"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.14"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.0",
        "0.10.1",
        "0.10.2",
        "0.10.3",
        "0.10.4",
        "0.10.5",
        "0.10.6",
        "0.10.7",
        "0.11.0",
        "0.11.1",
        "0.11.2",
        "0.11.3",
        "0.11.4",
        "0.11.5",
        "0.12.0",
        "0.12.1",
        "0.12.2",
        "0.12.3",
        "0.12.4",
        "0.12.5",
        "0.12.6",
        "0.13.0",
        "0.13.1",
        "0.13.10",
        "0.13.11",
        "0.13.12",
        "0.13.13",
        "0.13.14",
        "0.13.15",
        "0.13.16",
        "0.13.17",
        "0.13.18",
        "0.13.19",
        "0.13.2",
        "0.13.3",
        "0.13.4",
        "0.13.5",
        "0.13.6",
        "0.13.7",
        "0.13.8",
        "0.13.9",
        "0.14.0",
        "0.14.1",
        "0.14.10",
        "0.14.11",
        "0.14.12",
        "0.14.13",
        "0.14.14",
        "0.14.15",
        "0.14.16",
        "0.14.17",
        "0.14.18",
        "0.14.19",
        "0.14.2",
        "0.14.20",
        "0.14.21",
        "0.14.22",
        "0.14.3",
        "0.14.4",
        "0.14.5",
        "0.14.6",
        "0.14.7",
        "0.14.8",
        "0.14.9",
        "0.15.0",
        "0.15.1",
        "0.15.10",
        "0.15.11",
        "0.15.12",
        "0.15.13",
        "0.15.2",
        "0.15.3",
        "0.15.4",
        "0.15.5",
        "0.15.6",
        "0.15.7",
        "0.15.8",
        "0.15.9",
        "0.5.0",
        "0.5.1",
        "0.5.2",
        "0.5.3",
        "0.5.4",
        "0.5.5",
        "0.6.0",
        "0.6.1",
        "0.6.2",
        "0.6.3",
        "0.6.4",
        "0.6.5",
        "0.6.6",
        "0.6.7",
        "0.7.0",
        "0.7.1",
        "0.7.2",
        "0.7.3",
        "0.8.0",
        "0.8.1",
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        "3.4.19.dev3",
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        "3.6.14.dev6",
        "3.6.14.dev7",
        "3.6.2",
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        "3.6.3.dev2",
        "3.6.3.dev3",
        "3.6.4",
        "3.6.4.dev1",
        "3.6.5",
        "3.6.5.dev1",
        "3.6.5.dev2",
        "3.6.5.dev3",
        "3.6.5.dev4",
        "3.6.6",
        "3.6.7",
        "3.6.7.dev3",
        "3.6.8",
        "3.6.8.dev3",
        "3.6.9"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-7723",
    "GHSA-hvph-5985-r63v"
  ],
  "details": "A flaw has been found in PrefectHQ prefect up to 3.6.13. Affected is an unknown function of the file /api/events/in of the component WebSocket Endpoint. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. Upgrading to version 3.6.14 is able to address this issue. This patch is called 0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40. It is recommended to upgrade the affected component.",
  "id": "PYSEC-2026-2958",
  "modified": "2026-07-13T16:05:46.612202Z",
  "published": "2026-07-13T15:02:56.514997Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7723"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/pull/20372"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/commit/0d3ab3c2d3f9f98abfafdf7b9f6d4f8ed3925e40"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/commit/f8afecadf88ea5f73694dafa3a365b9d8fae1ad6"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/nedlir/f1ab8aa038aafbcc6beeef21fab1d74f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PrefectHQ/prefect"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.14"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/807256"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/360899"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/360899/cti"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/prefect"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-hvph-5985-r63v"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Prefect Unauthenticated Event Injection via /api/events/in WebSocket"
}

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

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.

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CVE-2026-7723 (GCVE-0-2026-7723)

FKIE_CVE-2026-7723

GHSA-HVPH-5985-R63V

PYSEC-2026-2958

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Related by attack behaviour