{"id":"CVE-2026-70159","title":"Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.","summary":"Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770"],"vendor":"Microsoft","product":"Microsoft.AspNetCore.SignalR.Common","affected":["Microsoft.AspNetCore.SignalR.Common >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.SignalR.Core >= 1.0.0, <= 1.2.13","Microsoft.AspNetCore.SignalR.Common >= 11.0.0-preview.5, <= 11.0.0-rc.1","Microsoft.AspNetCore.SignalR.Common >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.SignalR.Common >= 9.0.0, <= 9.0.20"],"patched":["Microsoft.AspNetCore.SignalR.Common 10.0.13","Microsoft.AspNetCore.SignalR.Core 1.2.14","Microsoft.AspNetCore.SignalR.Common 11.0.0-rc.2","Microsoft.AspNetCore.SignalR.Common 8.0.32","Microsoft.AspNetCore.SignalR.Common 9.0.21"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T23:17:57.133","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-70159","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70159","label":"secure@microsoft.com"},{"url":"https://github.com/dotnet/aspnetcore/security/advisories/GHSA-334f-vvp4-7g6p"},{"url":"https://github.com/dotnet/announcements/issues/452"},{"url":"https://github.com/dotnet/aspnetcore/discussions/69792"},{"url":"https://github.com/advisories/GHSA-334f-vvp4-7g6p"}],"tags":["nvd","ghsa","nuget"],"aliases":["GHSA-334f-vvp4-7g6p"],"ecosystem":"nuget","ingestedAt":"2026-10-13T19:43:29.015Z","slug":"CVE-2026-70159","body":"## Overview\n\nAllocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-70159)\n\nAffected packages:\n\n- `Microsoft.AspNetCore.SignalR.Common >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.SignalR.Core >= 1.0.0, <= 1.2.13`\n- `Microsoft.AspNetCore.SignalR.Common >= 11.0.0-preview.5, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.SignalR.Common >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.SignalR.Common >= 9.0.0, <= 9.0.20`\n\nPatched in:\n\n- `Microsoft.AspNetCore.SignalR.Common 10.0.13`\n- `Microsoft.AspNetCore.SignalR.Core 1.2.14`\n- `Microsoft.AspNetCore.SignalR.Common 11.0.0-rc.2`\n- `Microsoft.AspNetCore.SignalR.Common 8.0.32`\n- `Microsoft.AspNetCore.SignalR.Common 9.0.21`\n\nSource: https://github.com/advisories/GHSA-334f-vvp4-7g6p","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}