Vulnerabilities in pkg:nuget/idunno.AtProto.OAuthCallback

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8fh9-c4jq-94h4",
  "modified" : "2026-03-13T20:50:22Z",
  "published" : "2026-03-13T20:50:22Z",
  "aliases" : [ ],
  "summary" : "idunno.Bluesky, idunno.AtProto and idunno.AtProto.OAuthCallback Denial of Service Vulnerability",
  "details" : "# idunno.Bluesky, idunno.AtProto and idunno.AtProto.OAuthCallback Denial of Service Vulnerability\n\n## Impact\n\nThe `Microsoft.Bcl.Memory` package, a transitive dependency of `idunno.AtProto` and `idunno.AtProto.OAuthCallback` had a Denial of Service security vulnerability, [CVE-2026-26127](https://github.com/dotnet/announcements/issues/384)\n\n## Patches\n\nv1.7.0 updates the dependencies on `Duende.IdentityModel.OidcClient` and `Duende.IdentityModel.OidcClient.Extensions` which, in turn, updates their dependency on `Microsoft.Bcl.Memory` to 10.0.4, resolving the vulnerability.\n\n## Workarounds\n\nNo workarounds exist for this vulnerability.\n\n## How to fix the issue\n\nTo update your dependencies on `idunno.Bluesky`, `idunno.AtProto` and `idunno.AtProto.OAuthCallback`, \n\n### Using the .NET CLI (Command Line Interface):\n\n* Open a terminal or command prompt in your project's directory.\n* To update a specific package to its latest version, use the following add package command:\n   \n  * If you are using `idunno.Bluesky`\n    `dotnet package update idunno.Bluesky`\n\n  * If you are using `idunno.AtProto` as a direct dependency\n    `dotnet package update idunno.AtProto`\n\n  * If you are using `idunno.AtProto.OAuthCallback` as a direct dependency\n    `dotnet package update idunno.AtProto.OAuthCallback`\n\n### Using the NuGet Package Manager Console in Visual Studio:\n\n* Open your project in Visual Studio.\n* Navigate to \"Tools > NuGet Package Manager > Package Manager Console\".\n* To update a specific package to its latest version, use the following Update-Package command:\n\n  * If you are using `idunno.Bluesky`\n    `Update-Package -Id idunno.Bluesky`\n\n  * If you are using `idunno.AtProto` as a direct dependency\n    `Update-Package -Id idunno.AtProto`\n\n  * If you are using `idunno.AtProto.OAuthCallback` as a direct dependency\n    `Update-Package -Id idunno.AtProto.OAuthCallback`\n\n### NuGet Package Manager UI in Visual Studio:\n\n* Open your project in Visual Studio.\n* Right-click on your project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project > Manage NuGet Packages\".\n* In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from your configured package sources.\n* Select the package(s) you wish to update. You can choose a specific version from the dropdown or update to the latest available version.\n* Click the \"Update\" button.\n\n## References\n\n*  [Microsoft Security Advisory CVE-2026-26127 – .NET Denial of Service Vulnerability](https://github.com/dotnet/announcements/issues/384)\n*  [CVE-2026-26127](https://www.cve.org/CVERecord?id=CVE-2026-26127)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "idunno.AtProto"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "idunno.AtProto.OAuthCallback"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "idunno.Bluesky"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/blowdart/idunno.Bluesky/security/advisories/GHSA-8fh9-c4jq-94h4"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dotnet/announcements/issues/384"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/blowdart/idunno.Bluesky"
  }, {
    "type" : "WEB",
    "url" : "https://www.cve.org/CVERecord?id=CVE-2026-26127"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-129" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-13T20:50:22Z",
    "nvd_published_at" : null
  }
}