FKIE_CVE-2026-86600

Vulnerability from fkie_nvd - Published: 2026-09-08 16:18 - Updated: 2026-09-10 16:18
Severity
8.2 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Summary
In affected Snowflake drivers, WORKLOAD_IDENTITY authentication requests a cloud workload-identity token and attaches it to the login request without verifying that the configured host is a Snowflake endpoint. An attacker who can modify the connection configuration can cause the driver to mint a fresh attestation and send it to a host they control. The captured token can be replayed to Snowflake for its remaining lifetime in accounts where that workload identity is already registered. On Azure, the token audience is also taken from connection configuration. Combined with an attacker-controlled host, the driver can request a Managed Identity access token scoped to a non-Snowflake Azure resource and deliver it to the attacker. That path is the only case in which impact extends beyond Snowflake; it is bounded by the token lifetime and the managed identity’s permissions. Successful exploitation requires WORKLOAD_IDENTITY authentication on a workload that already has an ambient cloud identity. Patched driver versions restrict this authenticator to recognized Snowflake hosts. Users must manually upgrade.
References
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-610-september-3-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-220-sep-03-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-434-sep-03-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-330-september-3-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-3200-sep-3-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-420-sep-3-2026
412d305a-227d-44f9-a262-a31ba44f2aeahttps://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.10.0
412d305a-227d-44f9-a262-a31ba44f2aeahttps://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.3
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pypi.org",
          "defaultStatus": "unaffected",
          "packageName": "snowflake-connector-python",
          "product": "Snowflake Connector for Python",
          "repo": "https://github.com/snowflakedb/snowflake-connector-python",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.7.3",
              "status": "affected",
              "version": "3.14.1",
              "versionType": "python"
            }
          ]
        },
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "github.com/snowflakedb/gosnowflake",
          "product": "Snowflake Go Driver",
          "repo": "https://github.com/snowflakedb/gosnowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThanOrEqual": "1.19.1",
              "status": "affected",
              "version": "1.15.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "github.com/snowflakedb/gosnowflake/v2",
          "product": "Snowflake Go Driver",
          "repo": "https://github.com/snowflakedb/gosnowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "2.2.0",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc",
          "product": "Snowflake JDBC Driver",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.3.4",
              "status": "affected",
              "version": "3.24.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc-fips",
          "product": "Snowflake JDBC Driver (FIPS)",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.3.4",
              "status": "affected",
              "version": "3.24.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "net.snowflake:snowflake-jdbc-thin",
          "product": "Snowflake JDBC Driver (Thin)",
          "repo": "https://github.com/snowflakedb/snowflake-jdbc",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.3.4",
              "status": "affected",
              "version": "3.24.0",
              "versionType": "maven"
            }
          ]
        },
        {
          "collectionURL": "https://registry.npmjs.org",
          "defaultStatus": "unaffected",
          "packageName": "snowflake-sdk",
          "product": "Snowflake Node.js Driver",
          "repo": "https://github.com/snowflakedb/snowflake-connector-nodejs",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "3.3.0",
              "status": "affected",
              "version": "2.1.1",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://www.nuget.org",
          "defaultStatus": "unaffected",
          "packageName": "Snowflake.Data",
          "product": "Snowflake Connector for .NET",
          "repo": "https://github.com/snowflakedb/snowflake-connector-net",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "6.1.0",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake ODBC Driver",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "3.20.0",
              "status": "affected",
              "version": "3.9.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake PHP PDO Driver",
          "repo": "https://github.com/snowflakedb/pdo_snowflake",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "4.2.0",
              "status": "affected",
              "version": "3.6.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Snowflake Libsnowflakeclient",
          "repo": "https://github.com/snowflakedb/libsnowflakeclient",
          "vendor": "Snowflake",
          "versions": [
            {
              "lessThan": "2.10.0",
              "status": "affected",
              "version": "2.2.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In affected Snowflake drivers, WORKLOAD_IDENTITY authentication requests a cloud workload-identity token and attaches it to the login request without verifying that the configured host is a Snowflake endpoint. An attacker who can modify the connection configuration can cause the driver to mint a fresh attestation and send it to a host they control. The captured token can be replayed to Snowflake for its remaining lifetime in accounts where that workload identity is already registered. On Azure, the token audience is also taken from connection configuration. Combined with an attacker-controlled host, the driver can request a Managed Identity access token scoped to a non-Snowflake Azure resource and deliver it to the attacker. That path is the only case in which impact extends beyond Snowflake; it is bounded by the token lifetime and the managed identity\u2019s permissions. Successful exploitation requires WORKLOAD_IDENTITY authentication on a workload that already has an ambient cloud identity. Patched driver versions restrict this authenticator to recognized Snowflake hosts. Users must manually upgrade."
    }
  ],
  "id": "CVE-2026-86600",
  "lastModified": "2026-09-10T16:18:03.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.8,
        "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-86600",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-08T18:03:59.388056Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-08T16:18:29.943",
  "references": [
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/dotnet-2026#version-610-september-3-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/golang-2026#version-220-sep-03-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/jdbc-2026#version-434-sep-03-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/nodejs-2026#version-330-september-3-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/odbc-2026#version-3200-sep-3-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://docs.snowflake.com/en/release-notes/clients-drivers/php-pdo-2026#version-420-sep-3-2026"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://github.com/snowflakedb/libsnowflakeclient/releases/tag/v2.10.0"
    },
    {
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "url": "https://github.com/snowflakedb/snowflake-connector-python/releases/tag/v4.7.3"
    }
  ],
  "sourceIdentifier": "412d305a-227d-44f9-a262-a31ba44f2aea",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-441"
        },
        {
          "lang": "en",
          "value": "CWE-522"
        }
      ],
      "source": "412d305a-227d-44f9-a262-a31ba44f2aea",
      "type": "Secondary"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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

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

JSON

Loading timeline…




    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.