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CVE-2026-4644

Status: Awaiting AnalysisHigh (8.5)—

A Missing Authorization vulnerability in HTTP Connector in Google Cloud Integration Connectors versions prior to 2025-12-11 on Google Cloud Platform allows an authenticated user to escalate privileges and take over a Google Cloud Project using unauthorized service account attachment.

This vulnerability was patched on 11 December 2025, and no customer action is needed.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Acceso red con PR:L a servicios remotos (Cloud Integration Connectors) sin interacción del usuario. Escalada mediante attachement no autorizado de cuenta de servicio, resultando en takeover de proyecto.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementMulti-factor AuthenticationDisable or Remove Feature or ProgramApplication Developer GuidanceActive Directory ConfigurationVulnerability Scanning

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Google — Cloud Integration ConnectorsAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-4644",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-4644",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-04T16:08:14.984524Z"
        }
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    "cvssMetricV40": [
      {
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        "cvssData": {
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          "version": "4.0",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/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:Clear",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "CLEAR",
          "userInteraction": "NONE",
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          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Google Cloud",
          "product": "Integration Connectors",
          "versions": [
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              "version": "0",
              "lessThan": "2025-12-11",
              "versionType": "date"
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  "published": "2026-09-04T11:17:18.830",
  "references": [
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      "url": "https://docs.cloud.google.com/support/bulletins#gcp-2026-059",
      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c"
    }
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  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
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      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
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      "lang": "en",
      "value": "A Missing Authorization vulnerability in HTTP Connector in Google Cloud Integration Connectors versions prior to 2025-12-11 on Google Cloud Platform allows an authenticated user to escalate privileges and take over a Google Cloud Project using unauthorized service account attachment.\n\n\n\nThis vulnerability was patched on 11 December 2025, and no customer action is needed."
    }
  ],
  "lastModified": "2026-09-08T14:16:31.017",
  "sourceIdentifier": "f45cbf4e-4146-4068-b7e1-655ffc2c548c"
}