{"id":"CVE-2026-88092","title":"Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering over a network.","summary":"Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering over a network.","severity":"critical","cvss":9.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","cwe":["CWE-444"],"vendor":"Microsoft","product":"Microsoft.AspNetCore.App.Runtime.linux-arm","affected":["Microsoft.AspNetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31","Microsoft.AspNetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12","Microsoft.AspNetCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1","Microsoft.AspNetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20","Microsoft.AspNetCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20"],"patched":["Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-x64 8.0.32","Microsoft.AspNetCore.App.Runtime.win-x86 8.0.32","Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.osx-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.osx-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-arm64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-x64 10.0.13","Microsoft.AspNetCore.App.Runtime.win-x86 10.0.13","Microsoft.AspNetCore.App.Runtime.linux-arm 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-arm64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-x64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.osx-arm64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.osx-x64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.win-arm64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.win-x64 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.win-x86 11.0.0-rc.2","Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-arm 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-musl-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.osx-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.osx-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21","Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21"],"published":"2026-10-13","updated":"2026-10-13","sourceUpdated":"2026-10-13T21:19:43.730","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-88092","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88092","label":"secure@microsoft.com"},{"url":"https://github.com/dotnet/aspnetcore/security/advisories/GHSA-rv87-ccxw-8ggf"},{"url":"https://github.com/dotnet/announcements/issues/472"},{"url":"https://github.com/advisories/GHSA-rv87-ccxw-8ggf"}],"tags":["nvd","ghsa","nuget"],"aliases":["GHSA-rv87-ccxw-8ggf"],"ecosystem":"nuget","ingestedAt":"2026-10-13T19:43:29.209Z","slug":"CVE-2026-88092","body":"## Overview\n\nInconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to perform tampering 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-2026-88092)\n\nAffected packages:\n\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 8.0.0, <= 8.0.31`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 10.0.0, <= 10.0.12`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 11.0.0-preview.1, <= 11.0.0-rc.1`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 >= 9.0.0, <= 9.0.20`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 >= 9.0.0, <= 9.0.20`\n\nPatched in:\n\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 8.0.32`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 10.0.13`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 11.0.0-rc.2`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-musl-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.linux-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.osx-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.osx-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-arm64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-x64 9.0.21`\n- `Microsoft.AspNetCore.App.Runtime.win-x86 9.0.21`\n\nSource: https://github.com/advisories/GHSA-rv87-ccxw-8ggf","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":51.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}