CVE-2026-70179 (GCVE-0-2026-70179)
Vulnerability from cvelistv5
Published
2026-10-13 19:00
Modified
2026-10-28 18:15
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Summary
Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-70179",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-14T03:57:16.487Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Microsoft Visual Studio 2022 version 17.14",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "17.14.42",
              "status": "affected",
              "version": "17.14.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Visual Studio 2026 version 18.10",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "18.10.4",
              "status": "affected",
              "version": "18.10.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            ".NET 10.0 runtime installed on Linux",
            ".NET 10.0 runtime installed on Mac OS",
            ".NET 10.0 runtime installed on Windows",
            ".NET 8.0 runtime installed on Linux",
            ".NET 8.0 runtime installed on Mac OS",
            ".NET 8.0 runtime installed on Windows",
            ".NET 9.0 runtime installed on Linux",
            ".NET 9.0 runtime installed on Mac OS",
            ".NET 9.0 runtime installed on Windows"
          ],
          "product": "Microsoft.AspNetCore.Authentication.Negotiate",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.13",
              "status": "affected",
              "version": "10.0.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "18.10.4",
                  "versionStartIncluding": "18.10.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "17.14.42",
                  "versionStartIncluding": "17.14.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:microsoft.aspnetcore.authentication.negotiate:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.0.13",
                  "versionStartIncluding": "10.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-10-13T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-290",
              "description": "CWE-290: Authentication Bypass by Spoofing",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T18:15:08.807Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "ASP.NET Core Elevation of Privilege Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70179"
        }
      ],
      "title": "ASP.NET Core Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-70179",
    "datePublished": "2026-10-13T19:00:26.492Z",
    "dateReserved": "2026-08-03T23:48:30.859Z",
    "dateUpdated": "2026-10-28T18:15:08.807Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-70179\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-13T20:53:28.119404Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-13T20:53:28.977Z\"}}], \"cna\": {\"title\": \"ASP.NET Core Elevation of Privilege Vulnerability\", \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C\"}, \"scenarios\": [{\"lang\": \"en-US\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Microsoft\", \"product\": \"Microsoft Visual Studio 2022 version 17.14\", \"versions\": [{\"status\": \"affected\", \"version\": \"17.14.0\", \"lessThan\": \"17.14.42\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft Visual Studio 2026 version 18.10\", \"versions\": [{\"status\": \"affected\", \"version\": \"18.10.0\", \"lessThan\": \"18.10.4\", \"versionType\": \"custom\"}]}, {\"vendor\": \"Microsoft\", \"product\": \"Microsoft.AspNetCore.Authentication.Negotiate\", \"versions\": [{\"status\": \"affected\", \"version\": \"10.0.0\", \"lessThan\": \"10.0.13\", \"versionType\": \"custom\"}], \"platforms\": [\".NET 10.0 runtime installed on Linux\", \".NET 10.0 runtime installed on Mac OS\", \".NET 10.0 runtime installed on Windows\", \".NET 8.0 runtime installed on Linux\", \".NET 8.0 runtime installed on Mac OS\", \".NET 8.0 runtime installed on Windows\", \".NET 9.0 runtime installed on Linux\", \".NET 9.0 runtime installed on Mac OS\", \".NET 9.0 runtime installed on Windows\"]}], \"datePublic\": \"2026-10-13T14:00:00.000Z\", \"references\": [{\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70179\", \"name\": \"ASP.NET Core Elevation of Privilege Vulnerability\", \"tags\": [\"vendor-advisory\", \"patch\"]}], \"descriptions\": [{\"lang\": \"en-US\", \"value\": \"Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en-US\", \"type\": \"CWE\", \"cweId\": \"CWE-290\", \"description\": \"CWE-290: Authentication Bypass by Spoofing\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.10:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"18.10.4\", \"versionStartIncluding\": \"18.10.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"17.14.42\", \"versionStartIncluding\": \"17.14.0\"}, {\"criteria\": \"cpe:2.3:a:microsoft:microsoft.aspnetcore.authentication.negotiate:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"10.0.13\", \"versionStartIncluding\": \"10.0.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2026-10-27T21:29:47.776Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-70179\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-10-27T21:29:47.776Z\", \"dateReserved\": \"2026-08-03T23:48:30.859Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2026-10-13T19:00:26.492Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…