{"id":"GHSA-32wq-ppwg-3w4m","aliases":[],"status":"published","title":"EnhancedLinq.Async is Vulnerable to Denial of Service via Transitive Dependency Microsoft.Bcl.Memory","description":"### Impact\n`Microsoft.Bcl.Memory`, a transitive dependency of `EnhancedLinq.Async`, had a Denial of Service security vulnerability, [CVE-2026-26127](https://github.com/dotnet/announcements/issues/384), thus affecting `EnhancedLinq.Async` versions that had vulnerable versions of `Microsoft.Bcl.Memory` as a transitive dependency.\n\n### Patches\n`EnhancedLinq.Async` 1.0.0 Beta 3 updates the dependency on `System.Linq.AsyncEnumerable` to version 10.0.4 or newer which in turn updates the transitive dependency on `Microsoft.Bcl.Memory` from version 10.0.3 to 10.0.4 or newer, resolving the vulnerability.\n\n### Workarounds\nNo workarounds exist for this vulnerability.\n\n### How to fix the issue\n\nTo update the `EnhancedLinq.Async` NuGet package, use one of the following methods:\n\n**NuGet Package Manager UI in Visual Studio:**\n- Open the project in Visual Studio.\n- Right-click on the project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project \u003e Manage NuGet Packages\".\n- In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from configured package sources.\n- Select the package(s) to update. A specific version can be chosen from the dropdown, or the latest available version can be selected.\n- Click the \"Update\" button.\n\n**Using the NuGet Package Manager Console in Visual Studio:**\n- Open the project in Visual Studio.\n- Navigate to \"Tools \u003e NuGet Package Manager \u003e Package Manager Console\".\n- To update a specific package to its latest version, use the following Update-Package command:\n\n```\nUpdate-Package -Id EnhancedLinq.Async\n```\n\n**Using the .NET CLI (Command Line Interface):**\n- Open a terminal or command prompt in the project's directory.\n- To update a specific package to its latest version, use the following add package command:\n\n```\ndotnet package update EnhancedLinq.Async\n```\n\nOnce the NuGet package reference has been updated, the application must be recompiled and redeployed.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-129","CWE-1395"],"published":"2026-04-01T23:57:06Z","modified":"2026-04-02T13:14:16Z","fixes":[{"ecosystem":"NuGet","package":"EnhancedLinq.Async","fixed_in":["1.0.0-beta.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"NuGet","package":"EnhancedLinq.Async","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0-beta.1"},{"fixed":"1.0.0-beta.3"}]}]},{"source":"osv","ecosystem":"NuGet","package":"EnhancedLinq.Async","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0-beta.1"},{"fixed":"1.0.0-beta.3"}]}]}],"references":[{"url":"https://github.com/alastairlundy/EnhancedLinq/security/advisories/GHSA-32wq-ppwg-3w4m","tags":["web"]},{"url":"https://github.com/dotnet/announcements/issues/384","tags":["web"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-26127","tags":["web"]},{"url":"https://github.com/advisories/GHSA-32wq-ppwg-3w4m"},{"url":"https://github.com/alastairlundy/EnhancedLinq","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-32wq-ppwg-3w4m","title":"EnhancedLinq.Async is Vulnerable to Denial of Service via Transitive Dependency Microsoft.Bcl.Memory","description":"### Impact\n`Microsoft.Bcl.Memory`, a transitive dependency of `EnhancedLinq.Async`, had a Denial of Service security vulnerability, [CVE-2026-26127](https://github.com/dotnet/announcements/issues/384), thus affecting `EnhancedLinq.Async` versions that had vulnerable versions of `Microsoft.Bcl.Memory` as a transitive dependency.\n\n### Patches\n`EnhancedLinq.Async` 1.0.0 Beta 3 updates the dependency on `System.Linq.AsyncEnumerable` to version 10.0.4 or newer which in turn updates the transitive dependency on `Microsoft.Bcl.Memory` from version 10.0.3 to 10.0.4 or newer, resolving the vulnerability.\n\n### Workarounds\nNo workarounds exist for this vulnerability.\n\n### How to fix the issue\n\nTo update the `EnhancedLinq.Async` NuGet package, use one of the following methods:\n\n**NuGet Package Manager UI in Visual Studio:**\n- Open the project in Visual Studio.\n- Right-click on the project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project \u003e Manage NuGet Packages\".\n- In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from configured package sources.\n- Select the package(s) to update. A specific version can be chosen from the dropdown, or the latest available version can be selected.\n- Click the \"Update\" button.\n\n**Using the NuGet Package Manager Console in Visual Studio:**\n- Open the project in Visual Studio.\n- Navigate to \"Tools \u003e NuGet Package Manager \u003e Package Manager Console\".\n- To update a specific package to its latest version, use the following Update-Package command:\n\n```\nUpdate-Package -Id EnhancedLinq.Async\n```\n\n**Using the .NET CLI (Command Line Interface):**\n- Open a terminal or command prompt in the project's directory.\n- To update a specific package to its latest version, use the following add package command:\n\n```\ndotnet package update EnhancedLinq.Async\n```\n\nOnce the NuGet package reference has been updated, the application must be recompiled and redeployed.","status":"published","published":"2026-04-01T23:57:06Z","modified":"2026-04-01T23:57:06Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-129","CWE-1395"],"updated_at":"2026-11-02T14:39:47.945242Z"}],"osv":[{"id":"GHSA-32wq-ppwg-3w4m","title":"EnhancedLinq.Async is Vulnerable to Denial of Service via Transitive Dependency Microsoft.Bcl.Memory","description":"### Impact\n`Microsoft.Bcl.Memory`, a transitive dependency of `EnhancedLinq.Async`, had a Denial of Service security vulnerability, [CVE-2026-26127](https://github.com/dotnet/announcements/issues/384), thus affecting `EnhancedLinq.Async` versions that had vulnerable versions of `Microsoft.Bcl.Memory` as a transitive dependency.\n\n### Patches\n`EnhancedLinq.Async` 1.0.0 Beta 3 updates the dependency on `System.Linq.AsyncEnumerable` to version 10.0.4 or newer which in turn updates the transitive dependency on `Microsoft.Bcl.Memory` from version 10.0.3 to 10.0.4 or newer, resolving the vulnerability.\n\n### Workarounds\nNo workarounds exist for this vulnerability.\n\n### How to fix the issue\n\nTo update the `EnhancedLinq.Async` NuGet package, use one of the following methods:\n\n**NuGet Package Manager UI in Visual Studio:**\n- Open the project in Visual Studio.\n- Right-click on the project in Solution Explorer and select \"Manage NuGet Packages...\" or navigate to \"Project \u003e Manage NuGet Packages\".\n- In the NuGet Package Manager window, select the \"Updates\" tab. This tab lists packages with available updates from configured package sources.\n- Select the package(s) to update. A specific version can be chosen from the dropdown, or the latest available version can be selected.\n- Click the \"Update\" button.\n\n**Using the NuGet Package Manager Console in Visual Studio:**\n- Open the project in Visual Studio.\n- Navigate to \"Tools \u003e NuGet Package Manager \u003e Package Manager Console\".\n- To update a specific package to its latest version, use the following Update-Package command:\n\n```\nUpdate-Package -Id EnhancedLinq.Async\n```\n\n**Using the .NET CLI (Command Line Interface):**\n- Open a terminal or command prompt in the project's directory.\n- To update a specific package to its latest version, use the following add package command:\n\n```\ndotnet package update EnhancedLinq.Async\n```\n\nOnce the NuGet package reference has been updated, the application must be recompiled and redeployed.","status":"published","published":"2026-04-01T23:57:06Z","modified":"2026-04-02T13:14:16.912694Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-129","CWE-1395"],"updated_at":"2026-11-02T15:46:35.050232Z"}]}}