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CVE-2026-7724

Full vulnerability record from the local CVENow database.

Description

A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Severity
LOW
CVSS score
1.3 (v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-05-04 03:16:13.317000
Last modified
2026-10-26 19:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-7724",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-04T03:16:13.317",
  "lastModified": "2026-10-26T19:10:00.163",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in PrefectHQ prefect up to 3.6.28.dev1. Affected by this vulnerability is the function validate_restricted_url of the component Webhook/Notification. The manipulation leads to time-of-check time-of-use. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.6.28.dev2 addresses this issue. The identifier of the patch is 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad ha sido encontrada en PrefectHQ prefect hasta la versión 3.6.28.dev1. Afectada por esta vulnerabilidad es la función validate_restricted_url del componente Webhook/Notification. La manipulación lleva a tiempo de verificación tiempo de uso. Es posible iniciar el ataque remotamente. El ataque se considera que tiene alta complejidad. La explotación parece ser difícil. El exploit ha sido divulgado al público y puede ser utilizado. La actualización a la versión 3.6.28.dev2 soluciona este problema. El identificador del parche es 7c70ac54a5e101431d83b9f2681ec88d5e0021ed. Se aconseja actualizar el componente afectado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "PrefectHQ",
          "product": "prefect",
          "cpes": [
            "cpe:2.3:a:prefect:prefect:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Webhook/Notification"
          ],
          "versions": [
            {
              "version": "3.6.28.dev1",
              "status": "affected"
            },
            {
              "version": "3.6.28.dev2",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/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",
          "baseScore": 1.3,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 3.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:H/Au:S/C:P/I:P/A:P",
          "baseScore": 4.6,
          "accessVector": "NETWORK",
          "accessComplexity": "HIGH",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-05T00:54:33.808503Z",
          "id": "CVE-2026-7724",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        },
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gist.github.com/nedlir/fa99777e8989414585d08c3625bf044a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrefectHQ/prefect/",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrefectHQ/prefect/commit/7c70ac54a5e101431d83b9f2681ec88d5e0021ed",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrefectHQ/prefect/pull/21591",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/PrefectHQ/prefect/releases/tag/3.6.28.dev2",
      "source": "[email protected]"
    },
    {
      "url": "https://linear.app/prefect/issue/OSS-7874/fix-dns-rebinding-toctou-bypass-in-validate-restricted-url",
      "source": "[email protected]"
    },
    {
      "url": "https://vuldb.com/submit/807303",
      "source": "[email protected]"
    },
    {
      "url": "https://vuldb.com/vuln/360900",
      "source": "[email protected]"
    },
    {
      "url": "https://vuldb.com/vuln/360900/cti",
      "source": "[email protected]"
    }
  ]
}