FKIE_CVE-2026-81867

Vulnerability from fkie_nvd - Published: 2026-09-28 11:16 - Updated: 2026-09-28 11:16
Severity
9.4 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/U:Clear
Summary
A Deserialization of Untrusted Data vulnerability in the JavaScript Task in Google Cloud Application Integration versions prior to 2026-06-28 on Google Cloud Platform allows an authenticated user with standard permissions to run arbitrary code on the shared production servers using a specially crafted script bypassing param guards. This vulnerability was patched on 28 June 2026, and no customer action is needed.
References
f45cbf4e-4146-4068-b7e1-655ffc2c548chttps://docs.cloud.google.com/application-integration/docs/security-bulletins#gcp-2026-065
f45cbf4e-4146-4068-b7e1-655ffc2c548chttps://docs.cloud.google.com/support/bulletins#gcp-2026-065
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Application Integration",
          "vendor": "Google Cloud",
          "versions": [
            {
              "lessThan": "2026-06-28",
              "status": "affected",
              "version": "0",
              "versionType": "date"
            }
          ]
        }
      ],
      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Deserialization of Untrusted Data vulnerability in the JavaScript Task in Google Cloud Application Integration versions prior to 2026-06-28 on Google Cloud Platform allows an authenticated user with standard permissions to run arbitrary code on the shared production servers using a specially crafted script bypassing param guards.\n\n\nThis vulnerability was patched on 28 June 2026, and no customer action is needed."
    }
  ],
  "id": "CVE-2026-81867",
  "lastModified": "2026-09-28T11:16:48.070",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "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": "LOW",
          "providerUrgency": "CLEAR",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-28T11:16:48.070",
  "references": [
    {
      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
      "url": "https://docs.cloud.google.com/application-integration/docs/security-bulletins#gcp-2026-065"
    },
    {
      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
      "url": "https://docs.cloud.google.com/support/bulletins#gcp-2026-065"
    }
  ],
  "sourceIdentifier": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "f45cbf4e-4146-4068-b7e1-655ffc2c548c",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



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.