Search criteria

2 vulnerabilities found for semantic-kernel by microsoft

CVE-2026-25592 (GCVE-0-2026-25592)

Vulnerability from nvd – Published: 2026-02-06 20:38 – Updated: 2026-02-06 20:38
VLAI?
Title
Semantic Kernel has an Arbitrary File Write via AI Agent Function Calling in .NET SDK
Summary
Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.70.0, an Arbitrary File Write vulnerability has been identified in Microsoft's Semantic Kernel .NET SDK, specifically within the SessionsPythonPlugin. The problem has been fixed in Microsoft.SemanticKernel.Core version 1.70.0. As a mitigation, users can create a Function Invocation Filter which checks the arguments being passed to any calls to DownloadFileAsync  or UploadFileAsync and ensures the provided localFilePath is allow listed.
Severity ?
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
microsoft semantic-kernel Affected: < 1.70.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "semantic-kernel",
          "vendor": "microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.70.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.70.0, an Arbitrary File Write vulnerability has been identified in Microsoft\u0027s Semantic Kernel\u202f.NET SDK, specifically within the\u202fSessionsPythonPlugin. The problem has been fixed in Microsoft.SemanticKernel.Core version 1.70.0. As a mitigation, users can create a Function Invocation Filter which checks the arguments being passed to any calls to DownloadFileAsync\u202f or UploadFileAsync and ensures the provided localFilePath is allow listed."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T20:38:28.770Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-2ww3-72rp-wpp4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-2ww3-72rp-wpp4"
        },
        {
          "name": "https://github.com/microsoft/semantic-kernel/pull/13478/changes#diff-88d3cacba2bfa84eef8f2aa171b34f9940338cbb784a3ffc49f5fe3af1b8943d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/pull/13478/changes#diff-88d3cacba2bfa84eef8f2aa171b34f9940338cbb784a3ffc49f5fe3af1b8943d"
        },
        {
          "name": "https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Demos/CodeInterpreterPlugin/Program.cs#L61-L64",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Demos/CodeInterpreterPlugin/Program.cs#L61-L64"
        }
      ],
      "source": {
        "advisory": "GHSA-2ww3-72rp-wpp4",
        "discovery": "UNKNOWN"
      },
      "title": "Semantic Kernel has an Arbitrary File Write via AI Agent Function Calling in .NET SDK"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-25592",
    "datePublished": "2026-02-06T20:38:28.770Z",
    "dateReserved": "2026-02-03T01:02:46.716Z",
    "dateUpdated": "2026-02-06T20:38:28.770Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-25592 (GCVE-0-2026-25592)

Vulnerability from cvelistv5 – Published: 2026-02-06 20:38 – Updated: 2026-02-06 20:38
VLAI?
Title
Semantic Kernel has an Arbitrary File Write via AI Agent Function Calling in .NET SDK
Summary
Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.70.0, an Arbitrary File Write vulnerability has been identified in Microsoft's Semantic Kernel .NET SDK, specifically within the SessionsPythonPlugin. The problem has been fixed in Microsoft.SemanticKernel.Core version 1.70.0. As a mitigation, users can create a Function Invocation Filter which checks the arguments being passed to any calls to DownloadFileAsync  or UploadFileAsync and ensures the provided localFilePath is allow listed.
Severity ?
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
microsoft semantic-kernel Affected: < 1.70.0
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "semantic-kernel",
          "vendor": "microsoft",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.70.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Semantic Kernel is an SDK used to build, orchestrate, and deploy AI agents and multi-agent systems. Prior to 1.70.0, an Arbitrary File Write vulnerability has been identified in Microsoft\u0027s Semantic Kernel\u202f.NET SDK, specifically within the\u202fSessionsPythonPlugin. The problem has been fixed in Microsoft.SemanticKernel.Core version 1.70.0. As a mitigation, users can create a Function Invocation Filter which checks the arguments being passed to any calls to DownloadFileAsync\u202f or UploadFileAsync and ensures the provided localFilePath is allow listed."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-06T20:38:28.770Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-2ww3-72rp-wpp4",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/security/advisories/GHSA-2ww3-72rp-wpp4"
        },
        {
          "name": "https://github.com/microsoft/semantic-kernel/pull/13478/changes#diff-88d3cacba2bfa84eef8f2aa171b34f9940338cbb784a3ffc49f5fe3af1b8943d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/pull/13478/changes#diff-88d3cacba2bfa84eef8f2aa171b34f9940338cbb784a3ffc49f5fe3af1b8943d"
        },
        {
          "name": "https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Demos/CodeInterpreterPlugin/Program.cs#L61-L64",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/Demos/CodeInterpreterPlugin/Program.cs#L61-L64"
        }
      ],
      "source": {
        "advisory": "GHSA-2ww3-72rp-wpp4",
        "discovery": "UNKNOWN"
      },
      "title": "Semantic Kernel has an Arbitrary File Write via AI Agent Function Calling in .NET SDK"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-25592",
    "datePublished": "2026-02-06T20:38:28.770Z",
    "dateReserved": "2026-02-03T01:02:46.716Z",
    "dateUpdated": "2026-02-06T20:38:28.770Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}