GHSA-387C-QMRW-59QV

Vulnerability from github – Published: 2026-03-10 18:31 – Updated: 2026-03-11 18:54
VLAI?
Summary
Duplicate Advisory: Microsoft Security Advisory CVE-2026-26131 – .NET Elevation of Privilege Vulnerability
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-crjq-wm6x-6qx7. This link is maintained to preserve external references.

Original Description

Incorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.

Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-arm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-musl-arm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-musl-arm64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-musl-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 10.0.3"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "Microsoft.NetCore.App.Runtime.linux-x64"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-11T18:54:29Z",
    "nvd_published_at": "2026-03-10T18:18:42Z",
    "severity": "HIGH"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-crjq-wm6x-6qx7. This link is maintained to preserve external references.\n\n### Original Description\n\nIncorrect default permissions in .NET allows an authorized attacker to elevate privileges locally.",
  "id": "GHSA-387c-qmrw-59qv",
  "modified": "2026-03-11T18:54:29Z",
  "published": "2026-03-10T18:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26131"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/dotnet"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26131"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Duplicate Advisory: Microsoft Security Advisory CVE-2026-26131 \u2013 .NET Elevation of Privilege Vulnerability",
  "withdrawn": "2026-03-11T18:54:29Z"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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